5x^2-32x-252=0

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Solution for 5x^2-32x-252=0 equation:


Simplifying
5x2 + -32x + -252 = 0

Reorder the terms:
-252 + -32x + 5x2 = 0

Solving
-252 + -32x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
-50.4 + -6.4x + x2 = 0

Move the constant term to the right:

Add '50.4' to each side of the equation.
-50.4 + -6.4x + 50.4 + x2 = 0 + 50.4

Reorder the terms:
-50.4 + 50.4 + -6.4x + x2 = 0 + 50.4

Combine like terms: -50.4 + 50.4 = 0.0
0.0 + -6.4x + x2 = 0 + 50.4
-6.4x + x2 = 0 + 50.4

Combine like terms: 0 + 50.4 = 50.4
-6.4x + x2 = 50.4

The x term is -6.4x.  Take half its coefficient (-3.2).
Square it (10.24) and add it to both sides.

Add '10.24' to each side of the equation.
-6.4x + 10.24 + x2 = 50.4 + 10.24

Reorder the terms:
10.24 + -6.4x + x2 = 50.4 + 10.24

Combine like terms: 50.4 + 10.24 = 60.64
10.24 + -6.4x + x2 = 60.64

Factor a perfect square on the left side:
(x + -3.2)(x + -3.2) = 60.64

Calculate the square root of the right side: 7.787168934

Break this problem into two subproblems by setting 
(x + -3.2) equal to 7.787168934 and -7.787168934.

Subproblem 1

x + -3.2 = 7.787168934 Simplifying x + -3.2 = 7.787168934 Reorder the terms: -3.2 + x = 7.787168934 Solving -3.2 + x = 7.787168934 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.2' to each side of the equation. -3.2 + 3.2 + x = 7.787168934 + 3.2 Combine like terms: -3.2 + 3.2 = 0.0 0.0 + x = 7.787168934 + 3.2 x = 7.787168934 + 3.2 Combine like terms: 7.787168934 + 3.2 = 10.987168934 x = 10.987168934 Simplifying x = 10.987168934

Subproblem 2

x + -3.2 = -7.787168934 Simplifying x + -3.2 = -7.787168934 Reorder the terms: -3.2 + x = -7.787168934 Solving -3.2 + x = -7.787168934 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.2' to each side of the equation. -3.2 + 3.2 + x = -7.787168934 + 3.2 Combine like terms: -3.2 + 3.2 = 0.0 0.0 + x = -7.787168934 + 3.2 x = -7.787168934 + 3.2 Combine like terms: -7.787168934 + 3.2 = -4.587168934 x = -4.587168934 Simplifying x = -4.587168934

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.987168934, -4.587168934}

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