x^2+20x=-224

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Solution for x^2+20x=-224 equation:


Simplifying
x2 + 20x = -224

Reorder the terms:
20x + x2 = -224

Solving
20x + x2 = -224

Solving for variable 'x'.

Reorder the terms:
224 + 20x + x2 = -224 + 224

Combine like terms: -224 + 224 = 0
224 + 20x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-224' to each side of the equation.
224 + 20x + -224 + x2 = 0 + -224

Reorder the terms:
224 + -224 + 20x + x2 = 0 + -224

Combine like terms: 224 + -224 = 0
0 + 20x + x2 = 0 + -224
20x + x2 = 0 + -224

Combine like terms: 0 + -224 = -224
20x + x2 = -224

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 = -224 + 100

Reorder the terms:
100 + 20x + x2 = -224 + 100

Combine like terms: -224 + 100 = -124
100 + 20x + x2 = -124

Factor a perfect square on the left side:
(x + 10)(x + 10) = -124

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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