Question

Solve for x in the equation x2 + 4x-4=8.

O x = -6 or x = 2
X=-2+2/2
O x = -2 or x = 6
O x=2+2V5

Answer 1

`{x}^(2) + 4x - 4 = 8 \\ = > {x}^(2) + 4x - 4 - 8 = 0 \\ = > {x}^(2) + 4x - 12 = 0 \\ = > {x}^(2) + 6x - 2x - 12 = 0 \\ = > x(x + 6) - 2(x + 6) = 0 \\ = > (x - 2)(x + 6) = 0 \\ = > x = 2 \: \: \: or \: \: \: x = - 6`

Answer:

x = -6 or x = 2

Hope you could get an idea from here.

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