Precalculus Examples

$\frac{x + 2}{x^{2} - 4}$ , $x = - 1.999$

Step 1

Replace the variable $x$ with $- 1.999$ in the expression.

$\frac{(- 1.999) + 2}{{(- 1.999)}^{2} - 4}$

Step 2

Add $- 1.999$ and $2$ .

$\frac{0.001}{{(- 1.999)}^{2} - 4}$

Step 3

Simplify the denominator.

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Raise $- 1.999$ to the power of $2$ .

$\frac{0.001}{3.996001 - 4}$

Subtract $4$ from $3.996001$ .

$\frac{0.001}{- 0.003999}$

Step 4

Divide $0.001$ by $- 0.003999$ .

$- 0.25006251$