25+x(37-x)=126

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Solution for 25+x(37-x)=126 equation:


Simplifying
25 + x(37 + -1x) = 126
25 + (37 * x + -1x * x) = 126
25 + (37x + -1x2) = 126

Solving
25 + 37x + -1x2 = 126

Solving for variable 'x'.

Reorder the terms:
25 + -126 + 37x + -1x2 = 126 + -126

Combine like terms: 25 + -126 = -101
-101 + 37x + -1x2 = 126 + -126

Combine like terms: 126 + -126 = 0
-101 + 37x + -1x2 = 0

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

Divide each side by '-1'.
101 + -37x + x2 = 0

Move the constant term to the right:

Add '-101' to each side of the equation.
101 + -37x + -101 + x2 = 0 + -101

Reorder the terms:
101 + -101 + -37x + x2 = 0 + -101

Combine like terms: 101 + -101 = 0
0 + -37x + x2 = 0 + -101
-37x + x2 = 0 + -101

Combine like terms: 0 + -101 = -101
-37x + x2 = -101

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 = -101 + 342.25

Reorder the terms:
342.25 + -37x + x2 = -101 + 342.25

Combine like terms: -101 + 342.25 = 241.25
342.25 + -37x + x2 = 241.25

Factor a perfect square on the left side:
(x + -18.5)(x + -18.5) = 241.25

Calculate the square root of the right side: 15.532224567

Break this problem into two subproblems by setting 
(x + -18.5) equal to 15.532224567 and -15.532224567.

Subproblem 1

x + -18.5 = 15.532224567 Simplifying x + -18.5 = 15.532224567 Reorder the terms: -18.5 + x = 15.532224567 Solving -18.5 + x = 15.532224567 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 = 15.532224567 + 18.5 Combine like terms: -18.5 + 18.5 = 0.0 0.0 + x = 15.532224567 + 18.5 x = 15.532224567 + 18.5 Combine like terms: 15.532224567 + 18.5 = 34.032224567 x = 34.032224567 Simplifying x = 34.032224567

Subproblem 2

x + -18.5 = -15.532224567 Simplifying x + -18.5 = -15.532224567 Reorder the terms: -18.5 + x = -15.532224567 Solving -18.5 + x = -15.532224567 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 = -15.532224567 + 18.5 Combine like terms: -18.5 + 18.5 = 0.0 0.0 + x = -15.532224567 + 18.5 x = -15.532224567 + 18.5 Combine like terms: -15.532224567 + 18.5 = 2.967775433 x = 2.967775433 Simplifying x = 2.967775433

Solution

The solution to the problem is based on the solutions from the subproblems. x = {34.032224567, 2.967775433}

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