-x^2+37x-20=

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Solution for -x^2+37x-20= equation:


Simplifying
-1x2 + 37x + -20 = 0

Reorder the terms:
-20 + 37x + -1x2 = 0

Solving
-20 + 37x + -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'.
20 + -37x + x2 = 0

Move the constant term to the right:

Add '-20' to each side of the equation.
20 + -37x + -20 + x2 = 0 + -20

Reorder the terms:
20 + -20 + -37x + x2 = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -37x + x2 = 0 + -20
-37x + x2 = 0 + -20

Combine like terms: 0 + -20 = -20
-37x + x2 = -20

The x term is -37x.  Take half its coefficient (-18.5).
Square it (342.25) and add it to both sides.

Add '342.25' to each side of the equation.
-37x + 342.25 + x2 = -20 + 342.25

Reorder the terms:
342.25 + -37x + x2 = -20 + 342.25

Combine like terms: -20 + 342.25 = 322.25
342.25 + -37x + x2 = 322.25

Factor a perfect square on the left side:
(x + -18.5)(x + -18.5) = 322.25

Calculate the square root of the right side: 17.951323071

Break this problem into two subproblems by setting 
(x + -18.5) equal to 17.951323071 and -17.951323071.

Subproblem 1

x + -18.5 = 17.951323071 Simplifying x + -18.5 = 17.951323071 Reorder the terms: -18.5 + x = 17.951323071 Solving -18.5 + x = 17.951323071 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '18.5' to each side of the equation. -18.5 + 18.5 + x = 17.951323071 + 18.5 Combine like terms: -18.5 + 18.5 = 0.0 0.0 + x = 17.951323071 + 18.5 x = 17.951323071 + 18.5 Combine like terms: 17.951323071 + 18.5 = 36.451323071 x = 36.451323071 Simplifying x = 36.451323071

Subproblem 2

x + -18.5 = -17.951323071 Simplifying x + -18.5 = -17.951323071 Reorder the terms: -18.5 + x = -17.951323071 Solving -18.5 + x = -17.951323071 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '18.5' to each side of the equation. -18.5 + 18.5 + x = -17.951323071 + 18.5 Combine like terms: -18.5 + 18.5 = 0.0 0.0 + x = -17.951323071 + 18.5 x = -17.951323071 + 18.5 Combine like terms: -17.951323071 + 18.5 = 0.548676929 x = 0.548676929 Simplifying x = 0.548676929

Solution

The solution to the problem is based on the solutions from the subproblems. x = {36.451323071, 0.548676929}

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