Solve the equation, x^2 - 2x - 8 = 0 by completing the square.

A. x = 4 or x = - 2

B. x = 4 or x = 2

C. x = - 4 or x = - 2

D. x = - 4 or x = 2

Question

Brycen Graves

18 August, 13:53

+3

Answers (2)

Know the Answer?

Walker Weeks · Answer 1

D). Is the correct answer!

x2 + 2x - 8 = 0

(x + 4) (x - 2) = 0

x = - 4 or x = 2

Shane Adams · Answer 2

x^2 - 2x - 8 = 0

(x-4) (x+2) = 0

x - 4 = 0 then x = 4

x + 2 = 0 then x = - 2

answer is A. x = 4 or x = - 2

Solve the equation, x^2 - 2x - 8 = 0 by completing the square.A. x = 4 or x = - 2B. x = 4 or x = 2C. x = - 4 or x = - 2D. x = - 4 or x = 2