x^2+12x=-100

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Solution for x^2+12x=-100 equation:


Simplifying
x2 + 12x = -100

Reorder the terms:
12x + x2 = -100

Solving
12x + x2 = -100

Solving for variable 'x'.

Reorder the terms:
100 + 12x + x2 = -100 + 100

Combine like terms: -100 + 100 = 0
100 + 12x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-100' to each side of the equation.
100 + 12x + -100 + x2 = 0 + -100

Reorder the terms:
100 + -100 + 12x + x2 = 0 + -100

Combine like terms: 100 + -100 = 0
0 + 12x + x2 = 0 + -100
12x + x2 = 0 + -100

Combine like terms: 0 + -100 = -100
12x + x2 = -100

The x term is 12x.  Take half its coefficient (6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
12x + 36 + x2 = -100 + 36

Reorder the terms:
36 + 12x + x2 = -100 + 36

Combine like terms: -100 + 36 = -64
36 + 12x + x2 = -64

Factor a perfect square on the left side:
(x + 6)(x + 6) = -64

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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