x^2+66x-112=0

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Solution for x^2+66x-112=0 equation:


Simplifying
x2 + 66x + -112 = 0

Reorder the terms:
-112 + 66x + x2 = 0

Solving
-112 + 66x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '112' to each side of the equation.
-112 + 66x + 112 + x2 = 0 + 112

Reorder the terms:
-112 + 112 + 66x + x2 = 0 + 112

Combine like terms: -112 + 112 = 0
0 + 66x + x2 = 0 + 112
66x + x2 = 0 + 112

Combine like terms: 0 + 112 = 112
66x + x2 = 112

The x term is 66x.  Take half its coefficient (33).
Square it (1089) and add it to both sides.

Add '1089' to each side of the equation.
66x + 1089 + x2 = 112 + 1089

Reorder the terms:
1089 + 66x + x2 = 112 + 1089

Combine like terms: 112 + 1089 = 1201
1089 + 66x + x2 = 1201

Factor a perfect square on the left side:
(x + 33)(x + 33) = 1201

Calculate the square root of the right side: 34.655446902

Break this problem into two subproblems by setting 
(x + 33) equal to 34.655446902 and -34.655446902.

Subproblem 1

x + 33 = 34.655446902 Simplifying x + 33 = 34.655446902 Reorder the terms: 33 + x = 34.655446902 Solving 33 + x = 34.655446902 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-33' to each side of the equation. 33 + -33 + x = 34.655446902 + -33 Combine like terms: 33 + -33 = 0 0 + x = 34.655446902 + -33 x = 34.655446902 + -33 Combine like terms: 34.655446902 + -33 = 1.655446902 x = 1.655446902 Simplifying x = 1.655446902

Subproblem 2

x + 33 = -34.655446902 Simplifying x + 33 = -34.655446902 Reorder the terms: 33 + x = -34.655446902 Solving 33 + x = -34.655446902 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-33' to each side of the equation. 33 + -33 + x = -34.655446902 + -33 Combine like terms: 33 + -33 = 0 0 + x = -34.655446902 + -33 x = -34.655446902 + -33 Combine like terms: -34.655446902 + -33 = -67.655446902 x = -67.655446902 Simplifying x = -67.655446902

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.655446902, -67.655446902}

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