Calculus Examples

$lim_{x \to 0} \frac{x^{2} - x - 2}{x^{3} - 6 x^{2} - 7 x + 1}$

Step 1

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

$\frac{lim_{x \to 0} x^{2} - x - 2}{lim_{x \to 0} x^{3} - 6 x^{2} - 7 x + 1}$

Step 2

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

$\frac{lim_{x \to 0} x^{2} - lim_{x \to 0} x - lim_{x \to 0} 2}{lim_{x \to 0} x^{3} - 6 x^{2} - 7 x + 1}$

Step 3

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

$\frac{{(lim_{x \to 0} x)}^{2} - lim_{x \to 0} x - lim_{x \to 0} 2}{lim_{x \to 0} x^{3} - 6 x^{2} - 7 x + 1}$

Step 4

Evaluate the limit of $2$ which is constant as $x$ approaches $0$ .

$\frac{{(lim_{x \to 0} x)}^{2} - lim_{x \to 0} x - 1 \cdot 2}{lim_{x \to 0} x^{3} - 6 x^{2} - 7 x + 1}$

Step 5

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

$\frac{{(lim_{x \to 0} x)}^{2} - lim_{x \to 0} x - 1 \cdot 2}{lim_{x \to 0} x^{3} - lim_{x \to 0} 6 x^{2} - lim_{x \to 0} 7 x + lim_{x \to 0} 1}$

Step 6

Move the exponent $3$ from $x^{3}$ outside the limit using the Limits Power Rule.

$\frac{{(lim_{x \to 0} x)}^{2} - lim_{x \to 0} x - 1 \cdot 2}{{(lim_{x \to 0} x)}^{3} - lim_{x \to 0} 6 x^{2} - lim_{x \to 0} 7 x + lim_{x \to 0} 1}$

Step 7

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

$\frac{{(lim_{x \to 0} x)}^{2} - lim_{x \to 0} x - 1 \cdot 2}{{(lim_{x \to 0} x)}^{3} - 6 lim_{x \to 0} x^{2} - lim_{x \to 0} 7 x + lim_{x \to 0} 1}$

Step 8

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

$\frac{{(lim_{x \to 0} x)}^{2} - lim_{x \to 0} x - 1 \cdot 2}{{(lim_{x \to 0} x)}^{3} - 6 {(lim_{x \to 0} x)}^{2} - lim_{x \to 0} 7 x + lim_{x \to 0} 1}$

Step 9

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

$\frac{{(lim_{x \to 0} x)}^{2} - lim_{x \to 0} x - 1 \cdot 2}{{(lim_{x \to 0} x)}^{3} - 6 {(lim_{x \to 0} x)}^{2} - 7 lim_{x \to 0} x + lim_{x \to 0} 1}$

Step 10

Evaluate the limit of $1$ which is constant as $x$ approaches $0$ .

$\frac{{(lim_{x \to 0} x)}^{2} - lim_{x \to 0} x - 1 \cdot 2}{{(lim_{x \to 0} x)}^{3} - 6 {(lim_{x \to 0} x)}^{2} - 7 lim_{x \to 0} x + 1}$

Step 11

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

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Step 11.1