x^2+25x-525=0

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Solution for x^2+25x-525=0 equation:


Simplifying
x2 + 25x + -525 = 0

Reorder the terms:
-525 + 25x + x2 = 0

Solving
-525 + 25x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '525' to each side of the equation.
-525 + 25x + 525 + x2 = 0 + 525

Reorder the terms:
-525 + 525 + 25x + x2 = 0 + 525

Combine like terms: -525 + 525 = 0
0 + 25x + x2 = 0 + 525
25x + x2 = 0 + 525

Combine like terms: 0 + 525 = 525
25x + x2 = 525

The x term is 25x.  Take half its coefficient (12.5).
Square it (156.25) and add it to both sides.

Add '156.25' to each side of the equation.
25x + 156.25 + x2 = 525 + 156.25

Reorder the terms:
156.25 + 25x + x2 = 525 + 156.25

Combine like terms: 525 + 156.25 = 681.25
156.25 + 25x + x2 = 681.25

Factor a perfect square on the left side:
(x + 12.5)(x + 12.5) = 681.25

Calculate the square root of the right side: 26.100766272

Break this problem into two subproblems by setting 
(x + 12.5) equal to 26.100766272 and -26.100766272.

Subproblem 1

x + 12.5 = 26.100766272 Simplifying x + 12.5 = 26.100766272 Reorder the terms: 12.5 + x = 26.100766272 Solving 12.5 + x = 26.100766272 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-12.5' to each side of the equation. 12.5 + -12.5 + x = 26.100766272 + -12.5 Combine like terms: 12.5 + -12.5 = 0.0 0.0 + x = 26.100766272 + -12.5 x = 26.100766272 + -12.5 Combine like terms: 26.100766272 + -12.5 = 13.600766272 x = 13.600766272 Simplifying x = 13.600766272

Subproblem 2

x + 12.5 = -26.100766272 Simplifying x + 12.5 = -26.100766272 Reorder the terms: 12.5 + x = -26.100766272 Solving 12.5 + x = -26.100766272 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-12.5' to each side of the equation. 12.5 + -12.5 + x = -26.100766272 + -12.5 Combine like terms: 12.5 + -12.5 = 0.0 0.0 + x = -26.100766272 + -12.5 x = -26.100766272 + -12.5 Combine like terms: -26.100766272 + -12.5 = -38.600766272 x = -38.600766272 Simplifying x = -38.600766272

Solution

The solution to the problem is based on the solutions from the subproblems. x = {13.600766272, -38.600766272}

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