x^2+150x-7900=0

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Solution for x^2+150x-7900=0 equation:


Simplifying
x2 + 150x + -7900 = 0

Reorder the terms:
-7900 + 150x + x2 = 0

Solving
-7900 + 150x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '7900' to each side of the equation.
-7900 + 150x + 7900 + x2 = 0 + 7900

Reorder the terms:
-7900 + 7900 + 150x + x2 = 0 + 7900

Combine like terms: -7900 + 7900 = 0
0 + 150x + x2 = 0 + 7900
150x + x2 = 0 + 7900

Combine like terms: 0 + 7900 = 7900
150x + x2 = 7900

The x term is 150x.  Take half its coefficient (75).
Square it (5625) and add it to both sides.

Add '5625' to each side of the equation.
150x + 5625 + x2 = 7900 + 5625

Reorder the terms:
5625 + 150x + x2 = 7900 + 5625

Combine like terms: 7900 + 5625 = 13525
5625 + 150x + x2 = 13525

Factor a perfect square on the left side:
(x + 75)(x + 75) = 13525

Calculate the square root of the right side: 116.297033496

Break this problem into two subproblems by setting 
(x + 75) equal to 116.297033496 and -116.297033496.

Subproblem 1

x + 75 = 116.297033496 Simplifying x + 75 = 116.297033496 Reorder the terms: 75 + x = 116.297033496 Solving 75 + x = 116.297033496 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-75' to each side of the equation. 75 + -75 + x = 116.297033496 + -75 Combine like terms: 75 + -75 = 0 0 + x = 116.297033496 + -75 x = 116.297033496 + -75 Combine like terms: 116.297033496 + -75 = 41.297033496 x = 41.297033496 Simplifying x = 41.297033496

Subproblem 2

x + 75 = -116.297033496 Simplifying x + 75 = -116.297033496 Reorder the terms: 75 + x = -116.297033496 Solving 75 + x = -116.297033496 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-75' to each side of the equation. 75 + -75 + x = -116.297033496 + -75 Combine like terms: 75 + -75 = 0 0 + x = -116.297033496 + -75 x = -116.297033496 + -75 Combine like terms: -116.297033496 + -75 = -191.297033496 x = -191.297033496 Simplifying x = -191.297033496

Solution

The solution to the problem is based on the solutions from the subproblems. x = {41.297033496, -191.297033496}

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