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3 years ago

For which values of x will the rational expression below be undefined (x-3)(x+6)/x+7

Mathematics

1 answer:

Gekata [30.6K]3 years ago

4 0

Answer:

E. -7

Step-by-step explanation:

$\frac{(x-3)(x+6)}{x+7}$ Substitute x for -7

$\frac{(-7-3)(-7+6)}{-7+7}$ Simplify

$\frac{(-10)(-1)}{0}$ Multiply

$\frac{10}{0}$ This is undefined because you can't divide any number by 0.

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