x^2+16x-14=0

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Solution for x^2+16x-14=0 equation:


Simplifying
x2 + 16x + -14 = 0

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

Solving
-14 + 16x + x2 = 0

Solving for variable 'x'.

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 = 78
64 + 16x + x2 = 78

Factor a perfect square on the left side:
(x + 8)(x + 8) = 78

Calculate the square root of the right side: 8.831760866

Break this problem into two subproblems by setting 
(x + 8) equal to 8.831760866 and -8.831760866.

Subproblem 1

x + 8 = 8.831760866 Simplifying x + 8 = 8.831760866 Reorder the terms: 8 + x = 8.831760866 Solving 8 + x = 8.831760866 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 = 8.831760866 + -8 Combine like terms: 8 + -8 = 0 0 + x = 8.831760866 + -8 x = 8.831760866 + -8 Combine like terms: 8.831760866 + -8 = 0.831760866 x = 0.831760866 Simplifying x = 0.831760866

Subproblem 2

x + 8 = -8.831760866 Simplifying x + 8 = -8.831760866 Reorder the terms: 8 + x = -8.831760866 Solving 8 + x = -8.831760866 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 = -8.831760866 + -8 Combine like terms: 8 + -8 = 0 0 + x = -8.831760866 + -8 x = -8.831760866 + -8 Combine like terms: -8.831760866 + -8 = -16.831760866 x = -16.831760866 Simplifying x = -16.831760866

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.831760866, -16.831760866}

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