4x^2+32x-156=0

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Solution for 4x^2+32x-156=0 equation: 


Simplifying
4x2 + 32x + -156 = 0

Reorder the terms:
-156 + 32x + 4x2 = 0

Solving
-156 + 32x + 4x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '4'.
4(-39 + 8x + x2) = 0

Ignore the factor 4.

Subproblem 1
Set the factor '(-39 + 8x + x2)' equal to zero and attempt to solve:

Simplifying
-39 + 8x + x2 = 0

Solving
-39 + 8x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '39' to each side of the equation.
-39 + 8x + 39 + x2 = 0 + 39

Reorder the terms:
-39 + 39 + 8x + x2 = 0 + 39

Combine like terms: -39 + 39 = 0
0 + 8x + x2 = 0 + 39
8x + x2 = 0 + 39

Combine like terms: 0 + 39 = 39
8x + x2 = 39

The x term is 8x.  Take half its coefficient (4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
8x + 16 + x2 = 39 + 16

Reorder the terms:
16 + 8x + x2 = 39 + 16

Combine like terms: 39 + 16 = 55
16 + 8x + x2 = 55

Factor a perfect square on the left side:
(x + 4)(x + 4) = 55

Calculate the square root of the right side: 7.416198487

Break this problem into two subproblems by setting 
(x + 4) equal to 7.416198487 and -7.416198487.


Subproblem 1
x + 4 = 7.416198487

Simplifying
x + 4 = 7.416198487

Reorder the terms:
4 + x = 7.416198487

Solving
4 + x = 7.416198487

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-4' to each side of the equation.
4 + -4 + x = 7.416198487 + -4

Combine like terms: 4 + -4 = 0
0 + x = 7.416198487 + -4
x = 7.416198487 + -4

Combine like terms: 7.416198487 + -4 = 3.416198487
x = 3.416198487

Simplifying
x = 3.416198487


Subproblem 2
x + 4 = -7.416198487

Simplifying
x + 4 = -7.416198487

Reorder the terms:
4 + x = -7.416198487

Solving
4 + x = -7.416198487

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-4' to each side of the equation.
4 + -4 + x = -7.416198487 + -4

Combine like terms: 4 + -4 = 0
0 + x = -7.416198487 + -4
x = -7.416198487 + -4

Combine like terms: -7.416198487 + -4 = -11.416198487
x = -11.416198487

Simplifying
x = -11.416198487


Solution
The solution to the problem is based on the solutions
from the subproblems.
x = {3.416198487, -11.416198487}
Solution
x = {3.416198487, -11.416198487}

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