x^2-25x=-256

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Solution for x^2-25x=-256 equation:


Simplifying
x2 + -25x = -256

Reorder the terms:
-25x + x2 = -256

Solving
-25x + x2 = -256

Solving for variable 'x'.

Reorder the terms:
256 + -25x + x2 = -256 + 256

Combine like terms: -256 + 256 = 0
256 + -25x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-256' to each side of the equation.
256 + -25x + -256 + x2 = 0 + -256

Reorder the terms:
256 + -256 + -25x + x2 = 0 + -256

Combine like terms: 256 + -256 = 0
0 + -25x + x2 = 0 + -256
-25x + x2 = 0 + -256

Combine like terms: 0 + -256 = -256
-25x + x2 = -256

The x term is -25x.  Take half its coefficient (-12.5).
Square it (156.25) and add it to both sides.

Add '156.25' to each side of the equation.
-25x + 156.25 + x2 = -256 + 156.25

Reorder the terms:
156.25 + -25x + x2 = -256 + 156.25

Combine like terms: -256 + 156.25 = -99.75
156.25 + -25x + x2 = -99.75

Factor a perfect square on the left side:
(x + -12.5)(x + -12.5) = -99.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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