Question

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

Answer 1

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.

Answer 2

Answer: -7

Step-by-step explanation: A P E X