Question

Solve x2 + 4x – 12 = 0 by completing the square.

Answer 1

x^2 + 4x +(4/2)^2 - (4/2)^2 – 12 = 0
x^2+4x+4-16=0
(x+2)^2=16
x+2=+-4
x=4-2=2
x=-4-2=-6

Answer 2

thank you

Answer 3

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