4x^2+32x+5=0

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Solution for 4x^2+32x+5=0 equation:


Simplifying
4x2 + 32x + 5 = 0

Reorder the terms:
5 + 32x + 4x2 = 0

Solving
5 + 32x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
1.25 + 8x + x2 = 0

Move the constant term to the right:

Add '-1.25' to each side of the equation.
1.25 + 8x + -1.25 + x2 = 0 + -1.25

Reorder the terms:
1.25 + -1.25 + 8x + x2 = 0 + -1.25

Combine like terms: 1.25 + -1.25 = 0.00
0.00 + 8x + x2 = 0 + -1.25
8x + x2 = 0 + -1.25

Combine like terms: 0 + -1.25 = -1.25
8x + x2 = -1.25

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 = -1.25 + 16

Reorder the terms:
16 + 8x + x2 = -1.25 + 16

Combine like terms: -1.25 + 16 = 14.75
16 + 8x + x2 = 14.75

Factor a perfect square on the left side:
(x + 4)(x + 4) = 14.75

Calculate the square root of the right side: 3.840572874

Break this problem into two subproblems by setting 
(x + 4) equal to 3.840572874 and -3.840572874.

Subproblem 1

x + 4 = 3.840572874 Simplifying x + 4 = 3.840572874 Reorder the terms: 4 + x = 3.840572874 Solving 4 + x = 3.840572874 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 = 3.840572874 + -4 Combine like terms: 4 + -4 = 0 0 + x = 3.840572874 + -4 x = 3.840572874 + -4 Combine like terms: 3.840572874 + -4 = -0.159427126 x = -0.159427126 Simplifying x = -0.159427126

Subproblem 2

x + 4 = -3.840572874 Simplifying x + 4 = -3.840572874 Reorder the terms: 4 + x = -3.840572874 Solving 4 + x = -3.840572874 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 = -3.840572874 + -4 Combine like terms: 4 + -4 = 0 0 + x = -3.840572874 + -4 x = -3.840572874 + -4 Combine like terms: -3.840572874 + -4 = -7.840572874 x = -7.840572874 Simplifying x = -7.840572874

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.159427126, -7.840572874}

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