x^2+12x+36=-20

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Solution for x^2+12x+36=-20 equation:


Simplifying
x2 + 12x + 36 = -20

Reorder the terms:
36 + 12x + x2 = -20

Solving
36 + 12x + x2 = -20

Solving for variable 'x'.

Reorder the terms:
36 + 20 + 12x + x2 = -20 + 20

Combine like terms: 36 + 20 = 56
56 + 12x + x2 = -20 + 20

Combine like terms: -20 + 20 = 0
56 + 12x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-56' to each side of the equation.
56 + 12x + -56 + x2 = 0 + -56

Reorder the terms:
56 + -56 + 12x + x2 = 0 + -56

Combine like terms: 56 + -56 = 0
0 + 12x + x2 = 0 + -56
12x + x2 = 0 + -56

Combine like terms: 0 + -56 = -56
12x + x2 = -56

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 = -56 + 36

Reorder the terms:
36 + 12x + x2 = -56 + 36

Combine like terms: -56 + 36 = -20
36 + 12x + x2 = -20

Factor a perfect square on the left side:
(x + 6)(x + 6) = -20

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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