Precalculus Examples

${(x^{2} + 3)}^{- \frac{1}{3}} - \frac{2}{3} \cdot (x^{2} {(x^{2} + 3)}^{- \frac{4}{3}})$

Step 1

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

$\frac{1}{{(x^{2} + 3)}^{\frac{1}{3}}} - \frac{2}{3} \cdot (x^{2} {(x^{2} + 3)}^{- \frac{4}{3}})$

Step 2

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

$\frac{1}{{(x^{2} + 3)}^{\frac{1}{3}}} - \frac{2}{3} \cdot (x^{2} \frac{1}{{(x^{2} + 3)}^{\frac{4}{3}}})$

Step 3

Combine $x^{2}$ and $\frac{1}{{(x^{2} + 3)}^{\frac{4}{3}}}$ .

$\frac{1}{{(x^{2} + 3)}^{\frac{1}{3}}} - \frac{2}{3} \cdot \frac{x^{2}}{{(x^{2} + 3)}^{\frac{4}{3}}}$

Step 4

Multiply $\frac{x^{2}}{{(x^{2} + 3)}^{\frac{4}{3}}}$ by $\frac{2}{3}$ .

$\frac{1}{{(x^{2} + 3)}^{\frac{1}{3}}} - \frac{x^{2} \cdot 2}{{(x^{2} + 3)}^{\frac{4}{3}} \cdot 3}$

Step 5

Move $2$ to the left of $x^{2}$ .

$\frac{1}{{(x^{2} + 3)}^{\frac{1}{3}}} - \frac{2 \cdot x^{2}}{{(x^{2} + 3)}^{\frac{4}{3}} \cdot 3}$

Step 6

Move $3$ to the left of ${(x^{2} + 3)}^{\frac{4}{3}}$ .

$\frac{1}{{(x^{2} + 3)}^{\frac{1}{3}}} - \frac{2 \cdot x^{2}}{3 \cdot {(x^{2} + 3)}^{\frac{4}{3}}}$

Step 7

Multiply $2$ by $x^{2}$ .

$\frac{1}{{(x^{2} + 3)}^{\frac{1}{3}}} - \frac{2 x^{2}}{3 \cdot {(x^{2} + 3)}^{\frac{4}{3}}}$

Step 8

Multiply $3$ by ${(x^{2} + 3)}^{\frac{4}{3}}$ .

$\frac{1}{{(x^{2} + 3)}^{\frac{1}{3}}} - \frac{2 x^{2}}{3 {(x^{2} + 3)}^{\frac{4}{3}}}$