x^2-12x+66=0

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Solution for x^2-12x+66=0 equation:


Simplifying
x2 + -12x + 66 = 0

Reorder the terms:
66 + -12x + x2 = 0

Solving
66 + -12x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-66' to each side of the equation.
66 + -12x + -66 + x2 = 0 + -66

Reorder the terms:
66 + -66 + -12x + x2 = 0 + -66

Combine like terms: 66 + -66 = 0
0 + -12x + x2 = 0 + -66
-12x + x2 = 0 + -66

Combine like terms: 0 + -66 = -66
-12x + x2 = -66

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 = -66 + 36

Reorder the terms:
36 + -12x + x2 = -66 + 36

Combine like terms: -66 + 36 = -30
36 + -12x + x2 = -30

Factor a perfect square on the left side:
(x + -6)(x + -6) = -30

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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