x^2+72=12x

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Solution for x^2+72=12x equation:


Simplifying
x2 + 72 = 12x

Reorder the terms:
72 + x2 = 12x

Solving
72 + x2 = 12x

Solving for variable 'x'.

Reorder the terms:
72 + -12x + x2 = 12x + -12x

Combine like terms: 12x + -12x = 0
72 + -12x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-72' to each side of the equation.
72 + -12x + -72 + x2 = 0 + -72

Reorder the terms:
72 + -72 + -12x + x2 = 0 + -72

Combine like terms: 72 + -72 = 0
0 + -12x + x2 = 0 + -72
-12x + x2 = 0 + -72

Combine like terms: 0 + -72 = -72
-12x + x2 = -72

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 = -72 + 36

Reorder the terms:
36 + -12x + x2 = -72 + 36

Combine like terms: -72 + 36 = -36
36 + -12x + x2 = -36

Factor a perfect square on the left side:
(x + -6)(x + -6) = -36

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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