Question

For what value of x is the rational expression below equal to zero?

X-4
(x+5)(x-1)
IOA. 4
OB. 1
O C. -4
OD. -5

Answer 1

A

Explanation:

x - 4 / (x + 5)(x - 1)

let's expand:

x - 4 / x² + 4x - 5

4 - 4 / 16 + 16 - 5 = 0 so answer is 4