x^2=2x-12

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


Simplifying
x2 = 2x + -12

Reorder the terms:
x2 = -12 + 2x

Solving
x2 = -12 + 2x

Solving for variable 'x'.

Reorder the terms:
12 + -2x + x2 = -12 + 2x + 12 + -2x

Reorder the terms:
12 + -2x + x2 = -12 + 12 + 2x + -2x

Combine like terms: -12 + 12 = 0
12 + -2x + x2 = 0 + 2x + -2x
12 + -2x + x2 = 2x + -2x

Combine like terms: 2x + -2x = 0
12 + -2x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-12' to each side of the equation.
12 + -2x + -12 + x2 = 0 + -12

Reorder the terms:
12 + -12 + -2x + x2 = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -2x + x2 = 0 + -12
-2x + x2 = 0 + -12

Combine like terms: 0 + -12 = -12
-2x + x2 = -12

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = -12 + 1

Reorder the terms:
1 + -2x + x2 = -12 + 1

Combine like terms: -12 + 1 = -11
1 + -2x + x2 = -11

Factor a perfect square on the left side:
(x + -1)(x + -1) = -11

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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