4x^2+12x+36=23

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Solution for 4x^2+12x+36=23 equation:


Simplifying
4x2 + 12x + 36 = 23

Reorder the terms:
36 + 12x + 4x2 = 23

Solving
36 + 12x + 4x2 = 23

Solving for variable 'x'.

Reorder the terms:
36 + -23 + 12x + 4x2 = 23 + -23

Combine like terms: 36 + -23 = 13
13 + 12x + 4x2 = 23 + -23

Combine like terms: 23 + -23 = 0
13 + 12x + 4x2 = 0

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

Divide each side by '4'.
3.25 + 3x + x2 = 0

Move the constant term to the right:

Add '-3.25' to each side of the equation.
3.25 + 3x + -3.25 + x2 = 0 + -3.25

Reorder the terms:
3.25 + -3.25 + 3x + x2 = 0 + -3.25

Combine like terms: 3.25 + -3.25 = 0.00
0.00 + 3x + x2 = 0 + -3.25
3x + x2 = 0 + -3.25

Combine like terms: 0 + -3.25 = -3.25
3x + x2 = -3.25

The x term is 3x.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3x + 2.25 + x2 = -3.25 + 2.25

Reorder the terms:
2.25 + 3x + x2 = -3.25 + 2.25

Combine like terms: -3.25 + 2.25 = -1
2.25 + 3x + x2 = -1

Factor a perfect square on the left side:
(x + 1.5)(x + 1.5) = -1

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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