-x^2+32x=-9

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Solution for -x^2+32x=-9 equation:


Simplifying
-1x2 + 32x = -9

Reorder the terms:
32x + -1x2 = -9

Solving
32x + -1x2 = -9

Solving for variable 'x'.

Reorder the terms:
9 + 32x + -1x2 = -9 + 9

Combine like terms: -9 + 9 = 0
9 + 32x + -1x2 = 0

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

Divide each side by '-1'.
-9 + -32x + x2 = 0

Move the constant term to the right:

Add '9' to each side of the equation.
-9 + -32x + 9 + x2 = 0 + 9

Reorder the terms:
-9 + 9 + -32x + x2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -32x + x2 = 0 + 9
-32x + x2 = 0 + 9

Combine like terms: 0 + 9 = 9
-32x + x2 = 9

The x term is -32x.  Take half its coefficient (-16).
Square it (256) and add it to both sides.

Add '256' to each side of the equation.
-32x + 256 + x2 = 9 + 256

Reorder the terms:
256 + -32x + x2 = 9 + 256

Combine like terms: 9 + 256 = 265
256 + -32x + x2 = 265

Factor a perfect square on the left side:
(x + -16)(x + -16) = 265

Calculate the square root of the right side: 16.278820596

Break this problem into two subproblems by setting 
(x + -16) equal to 16.278820596 and -16.278820596.

Subproblem 1

x + -16 = 16.278820596 Simplifying x + -16 = 16.278820596 Reorder the terms: -16 + x = 16.278820596 Solving -16 + x = 16.278820596 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '16' to each side of the equation. -16 + 16 + x = 16.278820596 + 16 Combine like terms: -16 + 16 = 0 0 + x = 16.278820596 + 16 x = 16.278820596 + 16 Combine like terms: 16.278820596 + 16 = 32.278820596 x = 32.278820596 Simplifying x = 32.278820596

Subproblem 2

x + -16 = -16.278820596 Simplifying x + -16 = -16.278820596 Reorder the terms: -16 + x = -16.278820596 Solving -16 + x = -16.278820596 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '16' to each side of the equation. -16 + 16 + x = -16.278820596 + 16 Combine like terms: -16 + 16 = 0 0 + x = -16.278820596 + 16 x = -16.278820596 + 16 Combine like terms: -16.278820596 + 16 = -0.278820596 x = -0.278820596 Simplifying x = -0.278820596

Solution

The solution to the problem is based on the solutions from the subproblems. x = {32.278820596, -0.278820596}

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