Question

If x = -7, evaluate the following expression:

(x − 2)(x+14)
——————-
x(x + 8)

Answer 1

Answer:

9

Step-by-step explanation:

$\text{Given that}~ x = -7\\\\\dfrac{(x-2)(x+14)}{x(x+8)}\\\\\\=\dfrac{(-7-2)(-7+14)}{-7(-7+8)}\\\\\\=\dfrac{(-9)(7)}{-7(1)}\\\\\\=\dfrac{-63}{-7}\\\\\\=9$

Answer 2

Answer:

9

Step-by-step explanation:

Given :

$\frac{(x-2)(x+14)}{x(x+8)}$

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Substitute x = -7 :

⇒ $\frac{(-7-2)(-7+14)}{(-7)(-7+8)}$

⇒ $\frac{(-9)(7)}{(-7)(1)}$

⇒ -9 × -1

⇒ 9