x^2+16x-92=0

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Solution for x^2+16x-92=0 equation:


Simplifying
x2 + 16x + -92 = 0

Reorder the terms:
-92 + 16x + x2 = 0

Solving
-92 + 16x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '92' to each side of the equation.
-92 + 16x + 92 + x2 = 0 + 92

Reorder the terms:
-92 + 92 + 16x + x2 = 0 + 92

Combine like terms: -92 + 92 = 0
0 + 16x + x2 = 0 + 92
16x + x2 = 0 + 92

Combine like terms: 0 + 92 = 92
16x + x2 = 92

The x term is 16x.  Take half its coefficient (8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
16x + 64 + x2 = 92 + 64

Reorder the terms:
64 + 16x + x2 = 92 + 64

Combine like terms: 92 + 64 = 156
64 + 16x + x2 = 156

Factor a perfect square on the left side:
(x + 8)(x + 8) = 156

Calculate the square root of the right side: 12.489995997

Break this problem into two subproblems by setting 
(x + 8) equal to 12.489995997 and -12.489995997.

Subproblem 1

x + 8 = 12.489995997 Simplifying x + 8 = 12.489995997 Reorder the terms: 8 + x = 12.489995997 Solving 8 + x = 12.489995997 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 12.489995997 + -8 Combine like terms: 8 + -8 = 0 0 + x = 12.489995997 + -8 x = 12.489995997 + -8 Combine like terms: 12.489995997 + -8 = 4.489995997 x = 4.489995997 Simplifying x = 4.489995997

Subproblem 2

x + 8 = -12.489995997 Simplifying x + 8 = -12.489995997 Reorder the terms: 8 + x = -12.489995997 Solving 8 + x = -12.489995997 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = -12.489995997 + -8 Combine like terms: 8 + -8 = 0 0 + x = -12.489995997 + -8 x = -12.489995997 + -8 Combine like terms: -12.489995997 + -8 = -20.489995997 x = -20.489995997 Simplifying x = -20.489995997

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.489995997, -20.489995997}

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