x^2+40*x-44=0

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Solution for x^2+40*x-44=0 equation:


Simplifying
x2 + 40x + -44 = 0

Reorder the terms:
-44 + 40x + x2 = 0

Solving
-44 + 40x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '44' to each side of the equation.
-44 + 40x + 44 + x2 = 0 + 44

Reorder the terms:
-44 + 44 + 40x + x2 = 0 + 44

Combine like terms: -44 + 44 = 0
0 + 40x + x2 = 0 + 44
40x + x2 = 0 + 44

Combine like terms: 0 + 44 = 44
40x + x2 = 44

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 = 44 + 400

Reorder the terms:
400 + 40x + x2 = 44 + 400

Combine like terms: 44 + 400 = 444
400 + 40x + x2 = 444

Factor a perfect square on the left side:
(x + 20)(x + 20) = 444

Calculate the square root of the right side: 21.071307506

Break this problem into two subproblems by setting 
(x + 20) equal to 21.071307506 and -21.071307506.

Subproblem 1

x + 20 = 21.071307506 Simplifying x + 20 = 21.071307506 Reorder the terms: 20 + x = 21.071307506 Solving 20 + x = 21.071307506 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 = 21.071307506 + -20 Combine like terms: 20 + -20 = 0 0 + x = 21.071307506 + -20 x = 21.071307506 + -20 Combine like terms: 21.071307506 + -20 = 1.071307506 x = 1.071307506 Simplifying x = 1.071307506

Subproblem 2

x + 20 = -21.071307506 Simplifying x + 20 = -21.071307506 Reorder the terms: 20 + x = -21.071307506 Solving 20 + x = -21.071307506 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 = -21.071307506 + -20 Combine like terms: 20 + -20 = 0 0 + x = -21.071307506 + -20 x = -21.071307506 + -20 Combine like terms: -21.071307506 + -20 = -41.071307506 x = -41.071307506 Simplifying x = -41.071307506

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.071307506, -41.071307506}

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