Question

Find the value of this expression if x = 9. X^2-9 / x-7

Answer 1

Answer:

36

Step-by-step explanation:

Given

$\frac{x^2-9}{x-7}$ substitute x = 9 into the expression

= $\frac{9^2-9}{9-7}$

= $\frac{81-9}{2}$

= $\frac{72}{2}$

= 36