x^2-290x-90200=0

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Solution for x^2-290x-90200=0 equation:


Simplifying
x2 + -290x + -90200 = 0

Reorder the terms:
-90200 + -290x + x2 = 0

Solving
-90200 + -290x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '90200' to each side of the equation.
-90200 + -290x + 90200 + x2 = 0 + 90200

Reorder the terms:
-90200 + 90200 + -290x + x2 = 0 + 90200

Combine like terms: -90200 + 90200 = 0
0 + -290x + x2 = 0 + 90200
-290x + x2 = 0 + 90200

Combine like terms: 0 + 90200 = 90200
-290x + x2 = 90200

The x term is -290x.  Take half its coefficient (-145).
Square it (21025) and add it to both sides.

Add '21025' to each side of the equation.
-290x + 21025 + x2 = 90200 + 21025

Reorder the terms:
21025 + -290x + x2 = 90200 + 21025

Combine like terms: 90200 + 21025 = 111225
21025 + -290x + x2 = 111225

Factor a perfect square on the left side:
(x + -145)(x + -145) = 111225

Calculate the square root of the right side: 333.504122913

Break this problem into two subproblems by setting 
(x + -145) equal to 333.504122913 and -333.504122913.

Subproblem 1

x + -145 = 333.504122913 Simplifying x + -145 = 333.504122913 Reorder the terms: -145 + x = 333.504122913 Solving -145 + x = 333.504122913 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '145' to each side of the equation. -145 + 145 + x = 333.504122913 + 145 Combine like terms: -145 + 145 = 0 0 + x = 333.504122913 + 145 x = 333.504122913 + 145 Combine like terms: 333.504122913 + 145 = 478.504122913 x = 478.504122913 Simplifying x = 478.504122913

Subproblem 2

x + -145 = -333.504122913 Simplifying x + -145 = -333.504122913 Reorder the terms: -145 + x = -333.504122913 Solving -145 + x = -333.504122913 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '145' to each side of the equation. -145 + 145 + x = -333.504122913 + 145 Combine like terms: -145 + 145 = 0 0 + x = -333.504122913 + 145 x = -333.504122913 + 145 Combine like terms: -333.504122913 + 145 = -188.504122913 x = -188.504122913 Simplifying x = -188.504122913

Solution

The solution to the problem is based on the solutions from the subproblems. x = {478.504122913, -188.504122913}

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