x^2-32x-140=0

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Solution for x^2-32x-140=0 equation:


Simplifying
x2 + -32x + -140 = 0

Reorder the terms:
-140 + -32x + x2 = 0

Solving
-140 + -32x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '140' to each side of the equation.
-140 + -32x + 140 + x2 = 0 + 140

Reorder the terms:
-140 + 140 + -32x + x2 = 0 + 140

Combine like terms: -140 + 140 = 0
0 + -32x + x2 = 0 + 140
-32x + x2 = 0 + 140

Combine like terms: 0 + 140 = 140
-32x + x2 = 140

The x term is -32x.  Take half its coefficient (-16).
Square it (256) and add it to both sides.

Add '256' to each side of the equation.
-32x + 256 + x2 = 140 + 256

Reorder the terms:
256 + -32x + x2 = 140 + 256

Combine like terms: 140 + 256 = 396
256 + -32x + x2 = 396

Factor a perfect square on the left side:
(x + -16)(x + -16) = 396

Calculate the square root of the right side: 19.899748742

Break this problem into two subproblems by setting 
(x + -16) equal to 19.899748742 and -19.899748742.

Subproblem 1

x + -16 = 19.899748742 Simplifying x + -16 = 19.899748742 Reorder the terms: -16 + x = 19.899748742 Solving -16 + x = 19.899748742 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '16' to each side of the equation. -16 + 16 + x = 19.899748742 + 16 Combine like terms: -16 + 16 = 0 0 + x = 19.899748742 + 16 x = 19.899748742 + 16 Combine like terms: 19.899748742 + 16 = 35.899748742 x = 35.899748742 Simplifying x = 35.899748742

Subproblem 2

x + -16 = -19.899748742 Simplifying x + -16 = -19.899748742 Reorder the terms: -16 + x = -19.899748742 Solving -16 + x = -19.899748742 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '16' to each side of the equation. -16 + 16 + x = -19.899748742 + 16 Combine like terms: -16 + 16 = 0 0 + x = -19.899748742 + 16 x = -19.899748742 + 16 Combine like terms: -19.899748742 + 16 = -3.899748742 x = -3.899748742 Simplifying x = -3.899748742

Solution

The solution to the problem is based on the solutions from the subproblems. x = {35.899748742, -3.899748742}

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