x^2+360x=100

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Solution for x^2+360x=100 equation:


Simplifying
x2 + 360x = 100

Reorder the terms:
360x + x2 = 100

Solving
360x + x2 = 100

Solving for variable 'x'.

Reorder the terms:
-100 + 360x + x2 = 100 + -100

Combine like terms: 100 + -100 = 0
-100 + 360x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '100' to each side of the equation.
-100 + 360x + 100 + x2 = 0 + 100

Reorder the terms:
-100 + 100 + 360x + x2 = 0 + 100

Combine like terms: -100 + 100 = 0
0 + 360x + x2 = 0 + 100
360x + x2 = 0 + 100

Combine like terms: 0 + 100 = 100
360x + x2 = 100

The x term is 360x.  Take half its coefficient (180).
Square it (32400) and add it to both sides.

Add '32400' to each side of the equation.
360x + 32400 + x2 = 100 + 32400

Reorder the terms:
32400 + 360x + x2 = 100 + 32400

Combine like terms: 100 + 32400 = 32500
32400 + 360x + x2 = 32500

Factor a perfect square on the left side:
(x + 180)(x + 180) = 32500

Calculate the square root of the right side: 180.277563773

Break this problem into two subproblems by setting 
(x + 180) equal to 180.277563773 and -180.277563773.

Subproblem 1

x + 180 = 180.277563773 Simplifying x + 180 = 180.277563773 Reorder the terms: 180 + x = 180.277563773 Solving 180 + x = 180.277563773 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-180' to each side of the equation. 180 + -180 + x = 180.277563773 + -180 Combine like terms: 180 + -180 = 0 0 + x = 180.277563773 + -180 x = 180.277563773 + -180 Combine like terms: 180.277563773 + -180 = 0.277563773 x = 0.277563773 Simplifying x = 0.277563773

Subproblem 2

x + 180 = -180.277563773 Simplifying x + 180 = -180.277563773 Reorder the terms: 180 + x = -180.277563773 Solving 180 + x = -180.277563773 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-180' to each side of the equation. 180 + -180 + x = -180.277563773 + -180 Combine like terms: 180 + -180 = 0 0 + x = -180.277563773 + -180 x = -180.277563773 + -180 Combine like terms: -180.277563773 + -180 = -360.277563773 x = -360.277563773 Simplifying x = -360.277563773

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.277563773, -360.277563773}

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