x(25-x)=27.30

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Solution for x(25-x)=27.30 equation:


Simplifying
x(25 + -1x) = 27.30
(25 * x + -1x * x) = 27.30
(25x + -1x2) = 27.30

Solving
25x + -1x2 = 27.30

Solving for variable 'x'.

Reorder the terms:
-27.30 + 25x + -1x2 = 27.30 + -27.30

Combine like terms: 27.30 + -27.30 = 0.00
-27.30 + 25x + -1x2 = 0.00

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

Divide each side by '-1'.
27.3 + -25x + x2 = 0.00

Move the constant term to the right:

Add '-27.3' to each side of the equation.
27.3 + -25x + -27.3 + x2 = 0.00 + -27.3

Reorder the terms:
27.3 + -27.3 + -25x + x2 = 0.00 + -27.3

Combine like terms: 27.3 + -27.3 = 0.0
0.0 + -25x + x2 = 0.00 + -27.3
-25x + x2 = 0.00 + -27.3

Combine like terms: 0.00 + -27.3 = -27.3
-25x + x2 = -27.3

The x term is -25x.  Take half its coefficient (-12.5).
Square it (156.25) and add it to both sides.

Add '156.25' to each side of the equation.
-25x + 156.25 + x2 = -27.3 + 156.25

Reorder the terms:
156.25 + -25x + x2 = -27.3 + 156.25

Combine like terms: -27.3 + 156.25 = 128.95
156.25 + -25x + x2 = 128.95

Factor a perfect square on the left side:
(x + -12.5)(x + -12.5) = 128.95

Calculate the square root of the right side: 11.355615351

Break this problem into two subproblems by setting 
(x + -12.5) equal to 11.355615351 and -11.355615351.

Subproblem 1

x + -12.5 = 11.355615351 Simplifying x + -12.5 = 11.355615351 Reorder the terms: -12.5 + x = 11.355615351 Solving -12.5 + x = 11.355615351 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12.5' to each side of the equation. -12.5 + 12.5 + x = 11.355615351 + 12.5 Combine like terms: -12.5 + 12.5 = 0.0 0.0 + x = 11.355615351 + 12.5 x = 11.355615351 + 12.5 Combine like terms: 11.355615351 + 12.5 = 23.855615351 x = 23.855615351 Simplifying x = 23.855615351

Subproblem 2

x + -12.5 = -11.355615351 Simplifying x + -12.5 = -11.355615351 Reorder the terms: -12.5 + x = -11.355615351 Solving -12.5 + x = -11.355615351 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12.5' to each side of the equation. -12.5 + 12.5 + x = -11.355615351 + 12.5 Combine like terms: -12.5 + 12.5 = 0.0 0.0 + x = -11.355615351 + 12.5 x = -11.355615351 + 12.5 Combine like terms: -11.355615351 + 12.5 = 1.144384649 x = 1.144384649 Simplifying x = 1.144384649

Solution

The solution to the problem is based on the solutions from the subproblems. x = {23.855615351, 1.144384649}

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