Calculus Examples

$lim_{x \to x^{6}} \frac{3 x^{4} + 4 x - 5}{x^{6} - 7 x^{4} - 2 x + 10}$

Step 1

Split the limit using the Limits Quotient Rule on the limit as $x$ approaches $x^{6}$ .

$\frac{lim_{x \to x^{6}} 3 x^{4} + 4 x - 5}{lim_{x \to x^{6}} x^{6} - 7 x^{4} - 2 x + 10}$

Step 2

Split the limit using the Sum of Limits Rule on the limit as $x$ approaches $x^{6}$ .

$\frac{lim_{x \to x^{6}} 3 x^{4} + lim_{x \to x^{6}} 4 x - lim_{x \to x^{6}} 5}{lim_{x \to x^{6}} x^{6} - 7 x^{4} - 2 x + 10}$

Step 3

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

$\frac{3 lim_{x \to x^{6}} x^{4} + lim_{x \to x^{6}} 4 x - lim_{x \to x^{6}} 5}{lim_{x \to x^{6}} x^{6} - 7 x^{4} - 2 x + 10}$

Step 4

Move the exponent $4$ from $x^{4}$ outside the limit using the Limits Power Rule.

$\frac{3 {(lim_{x \to x^{6}} x)}^{4} + lim_{x \to x^{6}} 4 x - lim_{x \to x^{6}} 5}{lim_{x \to x^{6}} x^{6} - 7 x^{4} - 2 x + 10}$

Step 5

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

$\frac{3 {(lim_{x \to x^{6}} x)}^{4} + 4 lim_{x \to x^{6}} x - lim_{x \to x^{6}} 5}{lim_{x \to x^{6}} x^{6} - 7 x^{4} - 2 x + 10}$

Step 6

Evaluate the limit of $5$ which is constant as $x$ approaches $x^{6}$ .

$\frac{3 {(lim_{x \to x^{6}} x)}^{4} + 4 lim_{x \to x^{6}} x - 1 \cdot 5}{lim_{x \to x^{6}} x^{6} - 7 x^{4} - 2 x + 10}$

Step 7

Split the limit using the Sum of Limits Rule on the limit as $x$ approaches $x^{6}$ .

$\frac{3 {(lim_{x \to x^{6}} x)}^{4} + 4 lim_{x \to x^{6}} x - 1 \cdot 5}{lim_{x \to x^{6}} x^{6} - lim_{x \to x^{6}} 7 x^{4} - lim_{x \to x^{6}} 2 x + lim_{x \to x^{6}} 10}$

Step 8

Move the exponent $6$ from $x^{6}$ outside the limit using the Limits Power Rule.

$\frac{3 {(lim_{x \to x^{6}} x)}^{4} + 4 lim_{x \to x^{6}} x - 1 \cdot 5}{{(lim_{x \to x^{6}} x)}^{6} - lim_{x \to x^{6}} 7 x^{4} - lim_{x \to x^{6}} 2 x + lim_{x \to x^{6}} 10}$

Step 9

Move the term $7$ outside of the limit because it is constant with respect to $x$ .

$\frac{3 {(lim_{x \to x^{6}} x)}^{4} + 4 lim_{x \to x^{6}} x - 1 \cdot 5}{{(lim_{x \to x^{6}} x)}^{6} - 7 lim_{x \to x^{6}} x^{4} - lim_{x \to x^{6}} 2 x + lim_{x \to x^{6}} 10}$

Step 10

Move the exponent $4$ from $x^{4}$ outside the limit using the Limits Power Rule.

$\frac{3 {(lim_{x \to x^{6}} x)}^{4} + 4 lim_{x \to x^{6}} x - 1 \cdot 5}{{(lim_{x \to x^{6}} x)}^{6} - 7 {(lim_{x \to x^{6}} x)}^{4} - lim_{x \to x^{6}} 2 x + lim_{x \to x^{6}} 10}$

Step 11

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

$\frac{3 {(lim_{x \to x^{6}} x)}^{4} + 4 lim_{x \to x^{6}} x - 1 \cdot 5}{{(lim_{x \to x^{6}} x)}^{6} - 7 {(lim_{x \to x^{6}} x)}^{4} - 2 lim_{x \to x^{6}} x + lim_{x \to x^{6}} 10}$

Step 12

Evaluate the limit of $10$ which is constant as $x$ approaches $x^{6}$ .

$\frac{3 {(lim_{x \to x^{6}} x)}^{4} + 4 lim_{x \to x^{6}} x - 1 \cdot 5}{{(lim_{x \to x^{6}} x)}^{6} - 7 {(lim_{x \to x^{6}} x)}^{4} - 2 lim_{x \to x^{6}} x + 10}$

Step 13

Evaluate the limits by plugging in $x^{6}$ for all occurrences of $x$ .

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Step 13.1