x^2+20x+100=-7

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Solution for x^2+20x+100=-7 equation:


Simplifying
x2 + 20x + 100 = -7

Reorder the terms:
100 + 20x + x2 = -7

Solving
100 + 20x + x2 = -7

Solving for variable 'x'.

Reorder the terms:
100 + 7 + 20x + x2 = -7 + 7

Combine like terms: 100 + 7 = 107
107 + 20x + x2 = -7 + 7

Combine like terms: -7 + 7 = 0
107 + 20x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-107' to each side of the equation.
107 + 20x + -107 + x2 = 0 + -107

Reorder the terms:
107 + -107 + 20x + x2 = 0 + -107

Combine like terms: 107 + -107 = 0
0 + 20x + x2 = 0 + -107
20x + x2 = 0 + -107

Combine like terms: 0 + -107 = -107
20x + x2 = -107

The x term is 20x.  Take half its coefficient (10).
Square it (100) and add it to both sides.

Add '100' to each side of the equation.
20x + 100 + x2 = -107 + 100

Reorder the terms:
100 + 20x + x2 = -107 + 100

Combine like terms: -107 + 100 = -7
100 + 20x + x2 = -7

Factor a perfect square on the left side:
(x + 10)(x + 10) = -7

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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