-x^2-16x+52=0

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Solution for -x^2-16x+52=0 equation:


Simplifying
-1x2 + -16x + 52 = 0

Reorder the terms:
52 + -16x + -1x2 = 0

Solving
52 + -16x + -1x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-52 + 16x + x2 = 0

Move the constant term to the right:

Add '52' to each side of the equation.
-52 + 16x + 52 + x2 = 0 + 52

Reorder the terms:
-52 + 52 + 16x + x2 = 0 + 52

Combine like terms: -52 + 52 = 0
0 + 16x + x2 = 0 + 52
16x + x2 = 0 + 52

Combine like terms: 0 + 52 = 52
16x + x2 = 52

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 = 52 + 64

Reorder the terms:
64 + 16x + x2 = 52 + 64

Combine like terms: 52 + 64 = 116
64 + 16x + x2 = 116

Factor a perfect square on the left side:
(x + 8)(x + 8) = 116

Calculate the square root of the right side: 10.770329614

Break this problem into two subproblems by setting 
(x + 8) equal to 10.770329614 and -10.770329614.

Subproblem 1

x + 8 = 10.770329614 Simplifying x + 8 = 10.770329614 Reorder the terms: 8 + x = 10.770329614 Solving 8 + x = 10.770329614 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 = 10.770329614 + -8 Combine like terms: 8 + -8 = 0 0 + x = 10.770329614 + -8 x = 10.770329614 + -8 Combine like terms: 10.770329614 + -8 = 2.770329614 x = 2.770329614 Simplifying x = 2.770329614

Subproblem 2

x + 8 = -10.770329614 Simplifying x + 8 = -10.770329614 Reorder the terms: 8 + x = -10.770329614 Solving 8 + x = -10.770329614 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 = -10.770329614 + -8 Combine like terms: 8 + -8 = 0 0 + x = -10.770329614 + -8 x = -10.770329614 + -8 Combine like terms: -10.770329614 + -8 = -18.770329614 x = -18.770329614 Simplifying x = -18.770329614

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.770329614, -18.770329614}

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