-x^2+16x=37

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Solution for -x^2+16x=37 equation:


Simplifying
-1x2 + 16x = 37

Reorder the terms:
16x + -1x2 = 37

Solving
16x + -1x2 = 37

Solving for variable 'x'.

Reorder the terms:
-37 + 16x + -1x2 = 37 + -37

Combine like terms: 37 + -37 = 0
-37 + 16x + -1x2 = 0

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

Divide each side by '-1'.
37 + -16x + x2 = 0

Move the constant term to the right:

Add '-37' to each side of the equation.
37 + -16x + -37 + x2 = 0 + -37

Reorder the terms:
37 + -37 + -16x + x2 = 0 + -37

Combine like terms: 37 + -37 = 0
0 + -16x + x2 = 0 + -37
-16x + x2 = 0 + -37

Combine like terms: 0 + -37 = -37
-16x + x2 = -37

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 = -37 + 64

Reorder the terms:
64 + -16x + x2 = -37 + 64

Combine like terms: -37 + 64 = 27
64 + -16x + x2 = 27

Factor a perfect square on the left side:
(x + -8)(x + -8) = 27

Calculate the square root of the right side: 5.196152423

Break this problem into two subproblems by setting 
(x + -8) equal to 5.196152423 and -5.196152423.

Subproblem 1

x + -8 = 5.196152423 Simplifying x + -8 = 5.196152423 Reorder the terms: -8 + x = 5.196152423 Solving -8 + x = 5.196152423 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 = 5.196152423 + 8 Combine like terms: -8 + 8 = 0 0 + x = 5.196152423 + 8 x = 5.196152423 + 8 Combine like terms: 5.196152423 + 8 = 13.196152423 x = 13.196152423 Simplifying x = 13.196152423

Subproblem 2

x + -8 = -5.196152423 Simplifying x + -8 = -5.196152423 Reorder the terms: -8 + x = -5.196152423 Solving -8 + x = -5.196152423 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 = -5.196152423 + 8 Combine like terms: -8 + 8 = 0 0 + x = -5.196152423 + 8 x = -5.196152423 + 8 Combine like terms: -5.196152423 + 8 = 2.803847577 x = 2.803847577 Simplifying x = 2.803847577

Solution

The solution to the problem is based on the solutions from the subproblems. x = {13.196152423, 2.803847577}

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