x^2+8x+16=-12

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Solution for x^2+8x+16=-12 equation:


Simplifying
x2 + 8x + 16 = -12

Reorder the terms:
16 + 8x + x2 = -12

Solving
16 + 8x + x2 = -12

Solving for variable 'x'.

Reorder the terms:
16 + 12 + 8x + x2 = -12 + 12

Combine like terms: 16 + 12 = 28
28 + 8x + x2 = -12 + 12

Combine like terms: -12 + 12 = 0
28 + 8x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-28' to each side of the equation.
28 + 8x + -28 + x2 = 0 + -28

Reorder the terms:
28 + -28 + 8x + x2 = 0 + -28

Combine like terms: 28 + -28 = 0
0 + 8x + x2 = 0 + -28
8x + x2 = 0 + -28

Combine like terms: 0 + -28 = -28
8x + x2 = -28

The x term is 8x.  Take half its coefficient (4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
8x + 16 + x2 = -28 + 16

Reorder the terms:
16 + 8x + x2 = -28 + 16

Combine like terms: -28 + 16 = -12
16 + 8x + x2 = -12

Factor a perfect square on the left side:
(x + 4)(x + 4) = -12

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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