37x-2x^2=100

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Solution for 37x-2x^2=100 equation:


Simplifying
37x + -2x2 = 100

Solving
37x + -2x2 = 100

Solving for variable 'x'.

Reorder the terms:
-100 + 37x + -2x2 = 100 + -100

Combine like terms: 100 + -100 = 0
-100 + 37x + -2x2 = 0

Begin completing the square.  Divide all terms by
-2 the coefficient of the squared term: 

Divide each side by '-2'.
50 + -18.5x + x2 = 0

Move the constant term to the right:

Add '-50' to each side of the equation.
50 + -18.5x + -50 + x2 = 0 + -50

Reorder the terms:
50 + -50 + -18.5x + x2 = 0 + -50

Combine like terms: 50 + -50 = 0
0 + -18.5x + x2 = 0 + -50
-18.5x + x2 = 0 + -50

Combine like terms: 0 + -50 = -50
-18.5x + x2 = -50

The x term is -18.5x.  Take half its coefficient (-9.25).
Square it (85.5625) and add it to both sides.

Add '85.5625' to each side of the equation.
-18.5x + 85.5625 + x2 = -50 + 85.5625

Reorder the terms:
85.5625 + -18.5x + x2 = -50 + 85.5625

Combine like terms: -50 + 85.5625 = 35.5625
85.5625 + -18.5x + x2 = 35.5625

Factor a perfect square on the left side:
(x + -9.25)(x + -9.25) = 35.5625

Calculate the square root of the right side: 5.963430221

Break this problem into two subproblems by setting 
(x + -9.25) equal to 5.963430221 and -5.963430221.

Subproblem 1

x + -9.25 = 5.963430221 Simplifying x + -9.25 = 5.963430221 Reorder the terms: -9.25 + x = 5.963430221 Solving -9.25 + x = 5.963430221 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9.25' to each side of the equation. -9.25 + 9.25 + x = 5.963430221 + 9.25 Combine like terms: -9.25 + 9.25 = 0.00 0.00 + x = 5.963430221 + 9.25 x = 5.963430221 + 9.25 Combine like terms: 5.963430221 + 9.25 = 15.213430221 x = 15.213430221 Simplifying x = 15.213430221

Subproblem 2

x + -9.25 = -5.963430221 Simplifying x + -9.25 = -5.963430221 Reorder the terms: -9.25 + x = -5.963430221 Solving -9.25 + x = -5.963430221 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9.25' to each side of the equation. -9.25 + 9.25 + x = -5.963430221 + 9.25 Combine like terms: -9.25 + 9.25 = 0.00 0.00 + x = -5.963430221 + 9.25 x = -5.963430221 + 9.25 Combine like terms: -5.963430221 + 9.25 = 3.286569779 x = 3.286569779 Simplifying x = 3.286569779

Solution

The solution to the problem is based on the solutions from the subproblems. x = {15.213430221, 3.286569779}

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