x^2+28x-180=0

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Solution for x^2+28x-180=0 equation:


Simplifying
x2 + 28x + -180 = 0

Reorder the terms:
-180 + 28x + x2 = 0

Solving
-180 + 28x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '180' to each side of the equation.
-180 + 28x + 180 + x2 = 0 + 180

Reorder the terms:
-180 + 180 + 28x + x2 = 0 + 180

Combine like terms: -180 + 180 = 0
0 + 28x + x2 = 0 + 180
28x + x2 = 0 + 180

Combine like terms: 0 + 180 = 180
28x + x2 = 180

The x term is 28x.  Take half its coefficient (14).
Square it (196) and add it to both sides.

Add '196' to each side of the equation.
28x + 196 + x2 = 180 + 196

Reorder the terms:
196 + 28x + x2 = 180 + 196

Combine like terms: 180 + 196 = 376
196 + 28x + x2 = 376

Factor a perfect square on the left side:
(x + 14)(x + 14) = 376

Calculate the square root of the right side: 19.39071943

Break this problem into two subproblems by setting 
(x + 14) equal to 19.39071943 and -19.39071943.

Subproblem 1

x + 14 = 19.39071943 Simplifying x + 14 = 19.39071943 Reorder the terms: 14 + x = 19.39071943 Solving 14 + x = 19.39071943 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + x = 19.39071943 + -14 Combine like terms: 14 + -14 = 0 0 + x = 19.39071943 + -14 x = 19.39071943 + -14 Combine like terms: 19.39071943 + -14 = 5.39071943 x = 5.39071943 Simplifying x = 5.39071943

Subproblem 2

x + 14 = -19.39071943 Simplifying x + 14 = -19.39071943 Reorder the terms: 14 + x = -19.39071943 Solving 14 + x = -19.39071943 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + x = -19.39071943 + -14 Combine like terms: 14 + -14 = 0 0 + x = -19.39071943 + -14 x = -19.39071943 + -14 Combine like terms: -19.39071943 + -14 = -33.39071943 x = -33.39071943 Simplifying x = -33.39071943

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.39071943, -33.39071943}

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