Algebra Examples

${(8 x^{6} y^{- 15} z^{3})}^{\frac{2}{3}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 1

Rewrite the expression using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

${(8 x^{6} \frac{1}{y^{15}} z^{3})}^{\frac{2}{3}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 2

Multiply $8 x^{6} \frac{1}{y^{15}}$ .

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Step 2.1

Combine $8$ and $\frac{1}{y^{15}}$ .

${(x^{6} \frac{8}{y^{15}} z^{3})}^{\frac{2}{3}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 2.2

Combine $x^{6}$ and $\frac{8}{y^{15}}$ .

${(\frac{x^{6} \cdot 8}{y^{15}} z^{3})}^{\frac{2}{3}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 3

Move $8$ to the left of $x^{6}$ .

${(\frac{8 \cdot x^{6}}{y^{15}} z^{3})}^{\frac{2}{3}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 4

Combine $\frac{8 x^{6}}{y^{15}}$ and $z^{3}$ .

${(\frac{8 x^{6} z^{3}}{y^{15}})}^{\frac{2}{3}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 5

Use the power rule ${(a b)}^{n} = a^{n} b^{n}$ to distribute the exponent.

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Step 5.1

Apply the product rule to $\frac{8 x^{6} z^{3}}{y^{15}}$ .

$\frac{{(8 x^{6} z^{3})}^{\frac{2}{3}}}{{(y^{15})}^{\frac{2}{3}}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 5.2

Apply the product rule to $8 x^{6} z^{3}$ .

$\frac{{(8 x^{6})}^{\frac{2}{3}} {(z^{3})}^{\frac{2}{3}}}{{(y^{15})}^{\frac{2}{3}}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 5.3

Apply the product rule to $8 x^{6}$ .

$\frac{8^{\frac{2}{3}} {(x^{6})}^{\frac{2}{3}} {(z^{3})}^{\frac{2}{3}}}{{(y^{15})}^{\frac{2}{3}}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 6

Simplify the numerator.

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Step 6.1

Rewrite $8$ as $2^{3}$ .

$\frac{{(2^{3})}^{\frac{2}{3}} {(x^{6})}^{\frac{2}{3}} {(z^{3})}^{\frac{2}{3}}}{{(y^{15})}^{\frac{2}{3}}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 6.2

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$\frac{2^{3 (\frac{2}{3})} {(x^{6})}^{\frac{2}{3}} {(z^{3})}^{\frac{2}{3}}}{{(y^{15})}^{\frac{2}{3}}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 6.3

Cancel the common factor of $3$ .

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Step 6.3.1

Cancel the common factor.

$\frac{2^{3 (\frac{2}{3})} {(x^{6})}^{\frac{2}{3}} {(z^{3})}^{\frac{2}{3}}}{{(y^{15})}^{\frac{2}{3}}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 6.3.2

Rewrite the expression.

$\frac{2^{2} {(x^{6})}^{\frac{2}{3}} {(z^{3})}^{\frac{2}{3}}}{{(y^{15})}^{\frac{2}{3}}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 6.4

Raise $2$ to the power of $2$ .

$\frac{4 {(x^{6})}^{\frac{2}{3}} {(z^{3})}^{\frac{2}{3}}}{{(y^{15})}^{\frac{2}{3}}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 6.5

Multiply the exponents in ${(x^{6})}^{\frac{2}{3}}$ .

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Step 6.5.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$\frac{4 x^{6 (\frac{2}{3})} {(z^{3})}^{\frac{2}{3}}}{{(y^{15})}^{\frac{2}{3}}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 6.5.2

Cancel the common factor of $3$ .

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Step 6.5.2.1

Factor $3$ out of $6$ .

$\frac{4 x^{3 (2) \frac{2}{3}} {(z^{3})}^{\frac{2}{3}}}{{(y^{15})}^{\frac{2}{3}}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 6.5.2.2

Cancel the common factor.

$\frac{4 x^{3 \cdot 2 \frac{2}{3}} {(z^{3})}^{\frac{2}{3}}}{{(y^{15})}^{\frac{2}{3}}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 6.5.2.3

Rewrite the expression.

$\frac{4 x^{2 \cdot 2} {(z^{3})}^{\frac{2}{3}}}{{(y^{15})}^{\frac{2}{3}}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 6.5.3

Multiply $2$ by $2$ .

$\frac{4 x^{4} {(z^{3})}^{\frac{2}{3}}}{{(y^{15})}^{\frac{2}{3}}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 6.6

Multiply the exponents in ${(z^{3})}^{\frac{2}{3}}$ .

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Step 6.6.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$\frac{4 x^{4} z^{3 (\frac{2}{3})}}{{(y^{15})}^{\frac{2}{3}}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 6.6.2

Cancel the common factor of $3$ .

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Step 6.6.2.1

Cancel the common factor.

$\frac{4 x^{4} z^{3 (\frac{2}{3})}}{{(y^{15})}^{\frac{2}{3}}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 6.6.2.2

Rewrite the expression.

$\frac{4 x^{4} z^{2}}{{(y^{15})}^{\frac{2}{3}}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 7

Multiply the exponents in ${(y^{15})}^{\frac{2}{3}}$ .

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Step 7.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$\frac{4 x^{4} z^{2}}{y^{15 (\frac{2}{3})}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 7.2

Cancel the common factor of $3$ .

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Step 7.2.1

Factor $3$ out of $15$ .

$\frac{4 x^{4} z^{2}}{y^{3 (5) \frac{2}{3}}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 7.2.2

Cancel the common factor.

$\frac{4 x^{4} z^{2}}{y^{3 \cdot 5 \frac{2}{3}}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 7.2.3

Rewrite the expression.

$\frac{4 x^{4} z^{2}}{y^{5 \cdot 2}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 7.3

Multiply $5$ by $2$ .

$\frac{4 x^{4} z^{2}}{y^{10}} \cdot {(49 x^{- 2} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 8

Rewrite the expression using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$\frac{4 x^{4} z^{2}}{y^{10}} \cdot {(49 \frac{1}{x^{2}} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 9

Combine $49$ and $\frac{1}{x^{2}}$ .

$\frac{4 x^{4} z^{2}}{y^{10}} \cdot {(\frac{49}{x^{2}} y^{8} z^{2})}^{- \frac{1}{2}}$

Step 10

Combine $\frac{49}{x^{2}}$ and $y^{8}$ .

$\frac{4 x^{4} z^{2}}{y^{10}} \cdot {(\frac{49 y^{8}}{x^{2}} z^{2})}^{- \frac{1}{2}}$

Step 11

Combine $\frac{49 y^{8}}{x^{2}}$ and $z^{2}$ .

$\frac{4 x^{4} z^{2}}{y^{10}} \cdot {(\frac{49 y^{8} z^{2}}{x^{2}})}^{- \frac{1}{2}}$

Step 12

Change the sign of the exponent by rewriting the base as its reciprocal.

$\frac{4 x^{4} z^{2}}{y^{10}} \cdot {(\frac{x^{2}}{49 y^{8} z^{2}})}^{\frac{1}{2}}$

Step 13

Use the power rule ${(a b)}^{n} = a^{n} b^{n}$ to distribute the exponent.

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Step 13.1

Apply the product rule to $\frac{x^{2}}{49 y^{8} z^{2}}$ .

$\frac{4 x^{4} z^{2}}{y^{10}} \cdot \frac{{(x^{2})}^{\frac{1}{2}}}{{(49 y^{8} z^{2})}^{\frac{1}{2}}}$

Step 13.2

Apply the product rule to $49 y^{8} z^{2}$ .

$\frac{4 x^{4} z^{2}}{y^{10}} \cdot \frac{{(x^{2})}^{\frac{1}{2}}}{{(49 y^{8})}^{\frac{1}{2}} {(z^{2})}^{\frac{1}{2}}}$

Step 13.3

Apply the product rule to $49 y^{8}$ .

$\frac{4 x^{4} z^{2}}{y^{10}} \cdot \frac{{(x^{2})}^{\frac{1}{2}}}{49^{\frac{1}{2}} {(y^{8})}^{\frac{1}{2}} {(z^{2})}^{\frac{1}{2}}}$

Step 14

Combine.

$\frac{4 x^{4} z^{2} {(x^{2})}^{\frac{1}{2}}}{y^{10} (49^{\frac{1}{2}} {(y^{8})}^{\frac{1}{2}} {(z^{2})}^{\frac{1}{2}})}$

Step 15

Simplify the numerator.

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Step 15.1

Multiply the exponents in ${(x^{2})}^{\frac{1}{2}}$ .

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Step 15.1.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$\frac{4 x^{4} z^{2} x^{2 (\frac{1}{2})}}{y^{10} (49^{\frac{1}{2}} {(y^{8})}^{\frac{1}{2}} {(z^{2})}^{\frac{1}{2}})}$

Step 15.1.2

Cancel the common factor of $2$ .

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Step 15.1.2.1

Cancel the common factor.

$\frac{4 x^{4} z^{2} x^{2 (\frac{1}{2})}}{y^{10} (49^{\frac{1}{2}} {(y^{8})}^{\frac{1}{2}} {(z^{2})}^{\frac{1}{2}})}$

Step 15.1.2.2

Rewrite the expression.

$\frac{4 x^{4} z^{2} x^{1}}{y^{10} (49^{\frac{1}{2}} {(y^{8})}^{\frac{1}{2}} {(z^{2})}^{\frac{1}{2}})}$

Step 15.2

Simplify.

$\frac{4 x^{4} z^{2} x}{y^{10} (49^{\frac{1}{2}} {(y^{8})}^{\frac{1}{2}} {(z^{2})}^{\frac{1}{2}})}$

Step 15.3

Combine exponents.

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Step 15.3.1

Raise $x$ to the power of $1$ .

$\frac{4 (x^{1} x^{4}) z^{2}}{y^{10} (49^{\frac{1}{2}} {(y^{8})}^{\frac{1}{2}} {(z^{2})}^{\frac{1}{2}})}$

Step 15.3.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$\frac{4 x^{1 + 4} z^{2}}{y^{10} (49^{\frac{1}{2}} {(y^{8})}^{\frac{1}{2}} {(z^{2})}^{\frac{1}{2}})}$

Step 15.3.3

Add $1$ and $4$ .

$\frac{4 x^{5} z^{2}}{y^{10} (49^{\frac{1}{2}} {(y^{8})}^{\frac{1}{2}} {(z^{2})}^{\frac{1}{2}})}$

Step 16

Simplify the denominator.

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Step 16.1

Remove unnecessary parentheses.

$\frac{4 x^{5} z^{2}}{y^{10} \cdot 49^{\frac{1}{2}} {(y^{8})}^{\frac{1}{2}} {(z^{2})}^{\frac{1}{2}}}$

Step 16.2

Rewrite $49$ as $7^{2}$ .

$\frac{4 x^{5} z^{2}}{y^{10} \cdot {(7^{2})}^{\frac{1}{2}} {(y^{8})}^{\frac{1}{2}} {(z^{2})}^{\frac{1}{2}}}$

Step 16.3

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$\frac{4 x^{5} z^{2}}{y^{10} \cdot 7^{2 (\frac{1}{2})} {(y^{8})}^{\frac{1}{2}} {(z^{2})}^{\frac{1}{2}}}$

Step 16.4

Cancel the common factor of $2$ .

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Step 16.4.1

Cancel the common factor.

$\frac{4 x^{5} z^{2}}{y^{10} \cdot 7^{2 (\frac{1}{2})} {(y^{8})}^{\frac{1}{2}} {(z^{2})}^{\frac{1}{2}}}$

Step 16.4.2

Rewrite the expression.

$\frac{4 x^{5} z^{2}}{y^{10} \cdot 7^{1} {(y^{8})}^{\frac{1}{2}} {(z^{2})}^{\frac{1}{2}}}$

Step 16.5

Evaluate the exponent.

$\frac{4 x^{5} z^{2}}{y^{10} \cdot 7 {(y^{8})}^{\frac{1}{2}} {(z^{2})}^{\frac{1}{2}}}$

Step 16.6

Multiply the exponents in ${(y^{8})}^{\frac{1}{2}}$ .

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Step 16.6.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$\frac{4 x^{5} z^{2}}{y^{10} \cdot 7 y^{8 (\frac{1}{2})} {(z^{2})}^{\frac{1}{2}}}$

Step 16.6.2

Cancel the common factor of $2$ .

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Step 16.6.2.1

Factor $2$ out of $8$ .

$\frac{4 x^{5} z^{2}}{y^{10} \cdot 7 y^{2 (4) \frac{1}{2}} {(z^{2})}^{\frac{1}{2}}}$

Step 16.6.2.2

Cancel the common factor.

$\frac{4 x^{5} z^{2}}{y^{10} \cdot 7 y^{2 \cdot 4 \frac{1}{2}} {(z^{2})}^{\frac{1}{2}}}$

Step 16.6.2.3

Rewrite the expression.

$\frac{4 x^{5} z^{2}}{y^{10} \cdot 7 y^{4} {(z^{2})}^{\frac{1}{2}}}$

Step 16.7

Multiply the exponents in ${(z^{2})}^{\frac{1}{2}}$ .

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Step 16.7.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$\frac{4 x^{5} z^{2}}{y^{10} \cdot 7 y^{4} z^{2 (\frac{1}{2})}}$

Step 16.7.2

Cancel the common factor of $2$ .

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Step 16.7.2.1

Cancel the common factor.

$\frac{4 x^{5} z^{2}}{y^{10} \cdot 7 y^{4} z^{2 (\frac{1}{2})}}$

Step 16.7.2.2

Rewrite the expression.

$\frac{4 x^{5} z^{2}}{y^{10} \cdot 7 y^{4} z^{1}}$

Step 16.8

Simplify.

$\frac{4 x^{5} z^{2}}{y^{10} \cdot 7 y^{4} z}$

Step 16.9

Multiply $y^{10}$ by $y^{4}$ by adding the exponents.

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Step 16.9.1

Move $y^{4}$ .

$\frac{4 x^{5} z^{2}}{y^{4} y^{10} \cdot 7 z}$

Step 16.9.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$\frac{4 x^{5} z^{2}}{y^{4 + 10} \cdot 7 z}$

Step 16.9.3

Add $4$ and $10$ .

$\frac{4 x^{5} z^{2}}{y^{14} \cdot 7 z}$

Step 17

Reduce the expression by cancelling the common factors.

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Step 17.1

Cancel the common factor of $z^{2}$ and $z$ .

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Step 17.1.1

Factor $z$ out of $4 x^{5} z^{2}$ .

$\frac{z (4 x^{5} z)}{y^{14} \cdot 7 z}$

Step 17.1.2

Cancel the common factors.

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Step 17.1.2.1

Factor $z$ out of $y^{14} \cdot 7 z$ .

$\frac{z (4 x^{5} z)}{z (y^{14} \cdot 7)}$

Step 17.1.2.2

Cancel the common factor.

$\frac{z (4 x^{5} z)}{z (y^{14} \cdot 7)}$

Step 17.1.2.3

Rewrite the expression.

$\frac{4 x^{5} z}{y^{14} \cdot 7}$

Step 17.2

Move $7$ to the left of $y^{14}$ .

$\frac{4 x^{5} z}{7 y^{14}}$