x^2-15x-32=

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Solution for x^2-15x-32= equation:


Simplifying
x2 + -15x + -32 = 0

Reorder the terms:
-32 + -15x + x2 = 0

Solving
-32 + -15x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '32' to each side of the equation.
-32 + -15x + 32 + x2 = 0 + 32

Reorder the terms:
-32 + 32 + -15x + x2 = 0 + 32

Combine like terms: -32 + 32 = 0
0 + -15x + x2 = 0 + 32
-15x + x2 = 0 + 32

Combine like terms: 0 + 32 = 32
-15x + x2 = 32

The x term is -15x.  Take half its coefficient (-7.5).
Square it (56.25) and add it to both sides.

Add '56.25' to each side of the equation.
-15x + 56.25 + x2 = 32 + 56.25

Reorder the terms:
56.25 + -15x + x2 = 32 + 56.25

Combine like terms: 32 + 56.25 = 88.25
56.25 + -15x + x2 = 88.25

Factor a perfect square on the left side:
(x + -7.5)(x + -7.5) = 88.25

Calculate the square root of the right side: 9.394147114

Break this problem into two subproblems by setting 
(x + -7.5) equal to 9.394147114 and -9.394147114.

Subproblem 1

x + -7.5 = 9.394147114 Simplifying x + -7.5 = 9.394147114 Reorder the terms: -7.5 + x = 9.394147114 Solving -7.5 + x = 9.394147114 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.5' to each side of the equation. -7.5 + 7.5 + x = 9.394147114 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + x = 9.394147114 + 7.5 x = 9.394147114 + 7.5 Combine like terms: 9.394147114 + 7.5 = 16.894147114 x = 16.894147114 Simplifying x = 16.894147114

Subproblem 2

x + -7.5 = -9.394147114 Simplifying x + -7.5 = -9.394147114 Reorder the terms: -7.5 + x = -9.394147114 Solving -7.5 + x = -9.394147114 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.5' to each side of the equation. -7.5 + 7.5 + x = -9.394147114 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + x = -9.394147114 + 7.5 x = -9.394147114 + 7.5 Combine like terms: -9.394147114 + 7.5 = -1.894147114 x = -1.894147114 Simplifying x = -1.894147114

Solution

The solution to the problem is based on the solutions from the subproblems. x = {16.894147114, -1.894147114}

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