Question

Solve 2x2 + 8x - 12 = 0 by completing the square. Show step-by-step solution

Answer 1

112

Explanation:

i dont have a explanation i just have a answer.

Answer 2

Factor out 2 x^2 +4x -6 = 0

Take half middle coefficient and square it:
x^2 +4x +4 -6 = 4 (x+2)^2
= 10 x+2
= sqrt(10) x
= +-sqrt(10) -2