x^2+4x-1140=0

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Solution for x^2+4x-1140=0 equation:


Simplifying
x2 + 4x + -1140 = 0

Reorder the terms:
-1140 + 4x + x2 = 0

Solving
-1140 + 4x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '1140' to each side of the equation.
-1140 + 4x + 1140 + x2 = 0 + 1140

Reorder the terms:
-1140 + 1140 + 4x + x2 = 0 + 1140

Combine like terms: -1140 + 1140 = 0
0 + 4x + x2 = 0 + 1140
4x + x2 = 0 + 1140

Combine like terms: 0 + 1140 = 1140
4x + x2 = 1140

The x term is 4x.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4x + 4 + x2 = 1140 + 4

Reorder the terms:
4 + 4x + x2 = 1140 + 4

Combine like terms: 1140 + 4 = 1144
4 + 4x + x2 = 1144

Factor a perfect square on the left side:
(x + 2)(x + 2) = 1144

Calculate the square root of the right side: 33.823069051

Break this problem into two subproblems by setting 
(x + 2) equal to 33.823069051 and -33.823069051.

Subproblem 1

x + 2 = 33.823069051 Simplifying x + 2 = 33.823069051 Reorder the terms: 2 + x = 33.823069051 Solving 2 + x = 33.823069051 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 33.823069051 + -2 Combine like terms: 2 + -2 = 0 0 + x = 33.823069051 + -2 x = 33.823069051 + -2 Combine like terms: 33.823069051 + -2 = 31.823069051 x = 31.823069051 Simplifying x = 31.823069051

Subproblem 2

x + 2 = -33.823069051 Simplifying x + 2 = -33.823069051 Reorder the terms: 2 + x = -33.823069051 Solving 2 + x = -33.823069051 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -33.823069051 + -2 Combine like terms: 2 + -2 = 0 0 + x = -33.823069051 + -2 x = -33.823069051 + -2 Combine like terms: -33.823069051 + -2 = -35.823069051 x = -35.823069051 Simplifying x = -35.823069051

Solution

The solution to the problem is based on the solutions from the subproblems. x = {31.823069051, -35.823069051}

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