4x-36=x^2

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Solution for 4x-36=x^2 equation:


Simplifying
4x + -36 = x2

Reorder the terms:
-36 + 4x = x2

Solving
-36 + 4x = x2

Solving for variable 'x'.

Combine like terms: x2 + -1x2 = 0
-36 + 4x + -1x2 = 0

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

Divide each side by '-1'.
36 + -4x + x2 = 0

Move the constant term to the right:

Add '-36' to each side of the equation.
36 + -4x + -36 + x2 = 0 + -36

Reorder the terms:
36 + -36 + -4x + x2 = 0 + -36

Combine like terms: 36 + -36 = 0
0 + -4x + x2 = 0 + -36
-4x + x2 = 0 + -36

Combine like terms: 0 + -36 = -36
-4x + x2 = -36

The x term is -4x.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4x + 4 + x2 = -36 + 4

Reorder the terms:
4 + -4x + x2 = -36 + 4

Combine like terms: -36 + 4 = -32
4 + -4x + x2 = -32

Factor a perfect square on the left side:
(x + -2)(x + -2) = -32

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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