Question

1. (x + 1)(x – 5) = 0

a. x = 1 or x = -5
b. x = -4 or x = -5
c. x = 1 or x = -4
d. x = -1 or x = 5

Answer 1

Set (x+1) = 0 and find x: x = -1.
Set (x-5) = 0 and find x: x = 5

Answer 2

To solve this question, place each parenthesis equal to 0

(x + 1)(x - 5) = 0

(x + 1) = 0
(x - 5) = 0

Solve, place into each variable a solution to the problem.

x + 1 = 0

Isolate the x, subtract 1 from both sides

x + 1 (-1) = 0 (-1)

x = 0 - 1

x = -1

(x - 5) = 0

Isolate the x, add 5 to both sides

x - 5 = 0

x - 5 (+5) = 0 (+5)

x = 0 + 5

x = 5

you're answers are: x = -1, x = 5

Therefore, D) x = -1 or x = 5 is your answer


hope this helps