(12-x)x-x=63

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Solution for (12-x)x-x=63 equation:


Simplifying
(12 + -1x) * x + -1x = 63

Reorder the terms for easier multiplication:
x(12 + -1x) + -1x = 63
(12 * x + -1x * x) + -1x = 63
(12x + -1x2) + -1x = 63

Reorder the terms:
12x + -1x + -1x2 = 63

Combine like terms: 12x + -1x = 11x
11x + -1x2 = 63

Solving
11x + -1x2 = 63

Solving for variable 'x'.

Reorder the terms:
-63 + 11x + -1x2 = 63 + -63

Combine like terms: 63 + -63 = 0
-63 + 11x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
63 + -11x + x2 = 0

Move the constant term to the right:

Add '-63' to each side of the equation.
63 + -11x + -63 + x2 = 0 + -63

Reorder the terms:
63 + -63 + -11x + x2 = 0 + -63

Combine like terms: 63 + -63 = 0
0 + -11x + x2 = 0 + -63
-11x + x2 = 0 + -63

Combine like terms: 0 + -63 = -63
-11x + x2 = -63

The x term is -11x.  Take half its coefficient (-5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
-11x + 30.25 + x2 = -63 + 30.25

Reorder the terms:
30.25 + -11x + x2 = -63 + 30.25

Combine like terms: -63 + 30.25 = -32.75
30.25 + -11x + x2 = -32.75

Factor a perfect square on the left side:
(x + -5.5)(x + -5.5) = -32.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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