Calculus Examples

$lim_{x \to 0} \frac{5 x^{n} - 3 x^{n - 1} + 4 x^{n - 2}}{2 x^{n} - 6 x^{n - 2}}$

Step 1

Split the limit using the Limits Quotient Rule on the limit as $x$ approaches $0$ .

$\frac{lim_{x \to 0} 5 x^{n} - 3 x^{n - 1} + 4 x^{n - 2}}{lim_{x \to 0} 2 x^{n} - 6 x^{n - 2}}$

Step 2

Split the limit using the Sum of Limits Rule on the limit as $x$ approaches $0$ .

$\frac{lim_{x \to 0} 5 x^{n} - lim_{x \to 0} 3 x^{n - 1} + lim_{x \to 0} 4 x^{n - 2}}{lim_{x \to 0} 2 x^{n} - 6 x^{n - 2}}$

Step 3

Move the term $5$ outside of the limit because it is constant with respect to $x$ .

$\frac{5 lim_{x \to 0} x^{n} - lim_{x \to 0} 3 x^{n - 1} + lim_{x \to 0} 4 x^{n - 2}}{lim_{x \to 0} 2 x^{n} - 6 x^{n - 2}}$

Step 4

Move the exponent $n$ from $x^{n}$ outside the limit using the Limits Power Rule.

$\frac{5 {(lim_{x \to 0} x)}^{n} - lim_{x \to 0} 3 x^{n - 1} + lim_{x \to 0} 4 x^{n - 2}}{lim_{x \to 0} 2 x^{n} - 6 x^{n - 2}}$

Step 5

Move the term $3$ outside of the limit because it is constant with respect to $x$ .

$\frac{5 {(lim_{x \to 0} x)}^{n} - 3 lim_{x \to 0} x^{n - 1} + lim_{x \to 0} 4 x^{n - 2}}{lim_{x \to 0} 2 x^{n} - 6 x^{n - 2}}$

Step 6

Move the exponent $n - 1$ from $x^{n - 1}$ outside the limit using the Limits Power Rule.

$\frac{5 {(lim_{x \to 0} x)}^{n} - 3 {(lim_{x \to 0} x)}^{n - 1} + lim_{x \to 0} 4 x^{n - 2}}{lim_{x \to 0} 2 x^{n} - 6 x^{n - 2}}$

Step 7

Move the term $4$ outside of the limit because it is constant with respect to $x$ .

$\frac{5 {(lim_{x \to 0} x)}^{n} - 3 {(lim_{x \to 0} x)}^{n - 1} + 4 lim_{x \to 0} x^{n - 2}}{lim_{x \to 0} 2 x^{n} - 6 x^{n - 2}}$

Step 8

Move the exponent $n - 2$ from $x^{n - 2}$ outside the limit using the Limits Power Rule.

$\frac{5 {(lim_{x \to 0} x)}^{n} - 3 {(lim_{x \to 0} x)}^{n - 1} + 4 {(lim_{x \to 0} x)}^{n - 2}}{lim_{x \to 0} 2 x^{n} - 6 x^{n - 2}}$

Step 9

Split the limit using the Sum of Limits Rule on the limit as $x$ approaches $0$ .

$\frac{5 {(lim_{x \to 0} x)}^{n} - 3 {(lim_{x \to 0} x)}^{n - 1} + 4 {(lim_{x \to 0} x)}^{n - 2}}{lim_{x \to 0} 2 x^{n} - lim_{x \to 0} 6 x^{n - 2}}$

Step 10

Move the term $2$ outside of the limit because it is constant with respect to $x$ .

$\frac{5 {(lim_{x \to 0} x)}^{n} - 3 {(lim_{x \to 0} x)}^{n - 1} + 4 {(lim_{x \to 0} x)}^{n - 2}}{2 lim_{x \to 0} x^{n} - lim_{x \to 0} 6 x^{n - 2}}$

Step 11

Move the exponent $n$ from $x^{n}$ outside the limit using the Limits Power Rule.

$\frac{5 {(lim_{x \to 0} x)}^{n} - 3 {(lim_{x \to 0} x)}^{n - 1} + 4 {(lim_{x \to 0} x)}^{n - 2}}{2 {(lim_{x \to 0} x)}^{n} - lim_{x \to 0} 6 x^{n - 2}}$

Step 12

Move the term $6$ outside of the limit because it is constant with respect to $x$ .

$\frac{5 {(lim_{x \to 0} x)}^{n} - 3 {(lim_{x \to 0} x)}^{n - 1} + 4 {(lim_{x \to 0} x)}^{n - 2}}{2 {(lim_{x \to 0} x)}^{n} - 6 lim_{x \to 0} x^{n - 2}}$

Step 13

Move the exponent $n - 2$ from $x^{n - 2}$ outside the limit using the Limits Power Rule.

$\frac{5 {(lim_{x \to 0} x)}^{n} - 3 {(lim_{x \to 0} x)}^{n - 1} + 4 {(lim_{x \to 0} x)}^{n - 2}}{2 {(lim_{x \to 0} x)}^{n} - 6 {(lim_{x \to 0} x)}^{n - 2}}$

Step 14

Evaluate the limits by plugging in $0$ for all occurrences of $x$ .

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Step 14.1