x^2-25x+76=0

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Solution for x^2-25x+76=0 equation:


Simplifying
x2 + -25x + 76 = 0

Reorder the terms:
76 + -25x + x2 = 0

Solving
76 + -25x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-76' to each side of the equation.
76 + -25x + -76 + x2 = 0 + -76

Reorder the terms:
76 + -76 + -25x + x2 = 0 + -76

Combine like terms: 76 + -76 = 0
0 + -25x + x2 = 0 + -76
-25x + x2 = 0 + -76

Combine like terms: 0 + -76 = -76
-25x + x2 = -76

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 = -76 + 156.25

Reorder the terms:
156.25 + -25x + x2 = -76 + 156.25

Combine like terms: -76 + 156.25 = 80.25
156.25 + -25x + x2 = 80.25

Factor a perfect square on the left side:
(x + -12.5)(x + -12.5) = 80.25

Calculate the square root of the right side: 8.958236434

Break this problem into two subproblems by setting 
(x + -12.5) equal to 8.958236434 and -8.958236434.

Subproblem 1

x + -12.5 = 8.958236434 Simplifying x + -12.5 = 8.958236434 Reorder the terms: -12.5 + x = 8.958236434 Solving -12.5 + x = 8.958236434 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 = 8.958236434 + 12.5 Combine like terms: -12.5 + 12.5 = 0.0 0.0 + x = 8.958236434 + 12.5 x = 8.958236434 + 12.5 Combine like terms: 8.958236434 + 12.5 = 21.458236434 x = 21.458236434 Simplifying x = 21.458236434

Subproblem 2

x + -12.5 = -8.958236434 Simplifying x + -12.5 = -8.958236434 Reorder the terms: -12.5 + x = -8.958236434 Solving -12.5 + x = -8.958236434 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 = -8.958236434 + 12.5 Combine like terms: -12.5 + 12.5 = 0.0 0.0 + x = -8.958236434 + 12.5 x = -8.958236434 + 12.5 Combine like terms: -8.958236434 + 12.5 = 3.541763566 x = 3.541763566 Simplifying x = 3.541763566

Solution

The solution to the problem is based on the solutions from the subproblems. x = {21.458236434, 3.541763566}

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