x^2-10=16x+8

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Solution for x^2-10=16x+8 equation:


Simplifying
x2 + -10 = 16x + 8

Reorder the terms:
-10 + x2 = 16x + 8

Reorder the terms:
-10 + x2 = 8 + 16x

Solving
-10 + x2 = 8 + 16x

Solving for variable 'x'.

Reorder the terms:
-10 + -8 + -16x + x2 = 8 + 16x + -8 + -16x

Combine like terms: -10 + -8 = -18
-18 + -16x + x2 = 8 + 16x + -8 + -16x

Reorder the terms:
-18 + -16x + x2 = 8 + -8 + 16x + -16x

Combine like terms: 8 + -8 = 0
-18 + -16x + x2 = 0 + 16x + -16x
-18 + -16x + x2 = 16x + -16x

Combine like terms: 16x + -16x = 0
-18 + -16x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '18' to each side of the equation.
-18 + -16x + 18 + x2 = 0 + 18

Reorder the terms:
-18 + 18 + -16x + x2 = 0 + 18

Combine like terms: -18 + 18 = 0
0 + -16x + x2 = 0 + 18
-16x + x2 = 0 + 18

Combine like terms: 0 + 18 = 18
-16x + x2 = 18

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 = 18 + 64

Reorder the terms:
64 + -16x + x2 = 18 + 64

Combine like terms: 18 + 64 = 82
64 + -16x + x2 = 82

Factor a perfect square on the left side:
(x + -8)(x + -8) = 82

Calculate the square root of the right side: 9.055385138

Break this problem into two subproblems by setting 
(x + -8) equal to 9.055385138 and -9.055385138.

Subproblem 1

x + -8 = 9.055385138 Simplifying x + -8 = 9.055385138 Reorder the terms: -8 + x = 9.055385138 Solving -8 + x = 9.055385138 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 = 9.055385138 + 8 Combine like terms: -8 + 8 = 0 0 + x = 9.055385138 + 8 x = 9.055385138 + 8 Combine like terms: 9.055385138 + 8 = 17.055385138 x = 17.055385138 Simplifying x = 17.055385138

Subproblem 2

x + -8 = -9.055385138 Simplifying x + -8 = -9.055385138 Reorder the terms: -8 + x = -9.055385138 Solving -8 + x = -9.055385138 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 = -9.055385138 + 8 Combine like terms: -8 + 8 = 0 0 + x = -9.055385138 + 8 x = -9.055385138 + 8 Combine like terms: -9.055385138 + 8 = -1.055385138 x = -1.055385138 Simplifying x = -1.055385138

Solution

The solution to the problem is based on the solutions from the subproblems. x = {17.055385138, -1.055385138}

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