x^2-16x=-14

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Solution for x^2-16x=-14 equation:


Simplifying
x2 + -16x = -14

Reorder the terms:
-16x + x2 = -14

Solving
-16x + x2 = -14

Solving for variable 'x'.

Reorder the terms:
14 + -16x + x2 = -14 + 14

Combine like terms: -14 + 14 = 0
14 + -16x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-14' to each side of the equation.
14 + -16x + -14 + x2 = 0 + -14

Reorder the terms:
14 + -14 + -16x + x2 = 0 + -14

Combine like terms: 14 + -14 = 0
0 + -16x + x2 = 0 + -14
-16x + x2 = 0 + -14

Combine like terms: 0 + -14 = -14
-16x + x2 = -14

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 = -14 + 64

Reorder the terms:
64 + -16x + x2 = -14 + 64

Combine like terms: -14 + 64 = 50
64 + -16x + x2 = 50

Factor a perfect square on the left side:
(x + -8)(x + -8) = 50

Calculate the square root of the right side: 7.071067812

Break this problem into two subproblems by setting 
(x + -8) equal to 7.071067812 and -7.071067812.

Subproblem 1

x + -8 = 7.071067812 Simplifying x + -8 = 7.071067812 Reorder the terms: -8 + x = 7.071067812 Solving -8 + x = 7.071067812 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 = 7.071067812 + 8 Combine like terms: -8 + 8 = 0 0 + x = 7.071067812 + 8 x = 7.071067812 + 8 Combine like terms: 7.071067812 + 8 = 15.071067812 x = 15.071067812 Simplifying x = 15.071067812

Subproblem 2

x + -8 = -7.071067812 Simplifying x + -8 = -7.071067812 Reorder the terms: -8 + x = -7.071067812 Solving -8 + x = -7.071067812 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 = -7.071067812 + 8 Combine like terms: -8 + 8 = 0 0 + x = -7.071067812 + 8 x = -7.071067812 + 8 Combine like terms: -7.071067812 + 8 = 0.928932188 x = 0.928932188 Simplifying x = 0.928932188

Solution

The solution to the problem is based on the solutions from the subproblems. x = {15.071067812, 0.928932188}

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