x^2+40x-2500=0

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Solution for x^2+40x-2500=0 equation:


Simplifying
x2 + 40x + -2500 = 0

Reorder the terms:
-2500 + 40x + x2 = 0

Solving
-2500 + 40x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '2500' to each side of the equation.
-2500 + 40x + 2500 + x2 = 0 + 2500

Reorder the terms:
-2500 + 2500 + 40x + x2 = 0 + 2500

Combine like terms: -2500 + 2500 = 0
0 + 40x + x2 = 0 + 2500
40x + x2 = 0 + 2500

Combine like terms: 0 + 2500 = 2500
40x + x2 = 2500

The x term is 40x.  Take half its coefficient (20).
Square it (400) and add it to both sides.

Add '400' to each side of the equation.
40x + 400 + x2 = 2500 + 400

Reorder the terms:
400 + 40x + x2 = 2500 + 400

Combine like terms: 2500 + 400 = 2900
400 + 40x + x2 = 2900

Factor a perfect square on the left side:
(x + 20)(x + 20) = 2900

Calculate the square root of the right side: 53.851648071

Break this problem into two subproblems by setting 
(x + 20) equal to 53.851648071 and -53.851648071.

Subproblem 1

x + 20 = 53.851648071 Simplifying x + 20 = 53.851648071 Reorder the terms: 20 + x = 53.851648071 Solving 20 + x = 53.851648071 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + -20 + x = 53.851648071 + -20 Combine like terms: 20 + -20 = 0 0 + x = 53.851648071 + -20 x = 53.851648071 + -20 Combine like terms: 53.851648071 + -20 = 33.851648071 x = 33.851648071 Simplifying x = 33.851648071

Subproblem 2

x + 20 = -53.851648071 Simplifying x + 20 = -53.851648071 Reorder the terms: 20 + x = -53.851648071 Solving 20 + x = -53.851648071 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + -20 + x = -53.851648071 + -20 Combine like terms: 20 + -20 = 0 0 + x = -53.851648071 + -20 x = -53.851648071 + -20 Combine like terms: -53.851648071 + -20 = -73.851648071 x = -73.851648071 Simplifying x = -73.851648071

Solution

The solution to the problem is based on the solutions from the subproblems. x = {33.851648071, -73.851648071}

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