x^2=25x-89

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Solution for x^2=25x-89 equation:


Simplifying
x2 = 25x + -89

Reorder the terms:
x2 = -89 + 25x

Solving
x2 = -89 + 25x

Solving for variable 'x'.

Reorder the terms:
89 + -25x + x2 = -89 + 25x + 89 + -25x

Reorder the terms:
89 + -25x + x2 = -89 + 89 + 25x + -25x

Combine like terms: -89 + 89 = 0
89 + -25x + x2 = 0 + 25x + -25x
89 + -25x + x2 = 25x + -25x

Combine like terms: 25x + -25x = 0
89 + -25x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-89' to each side of the equation.
89 + -25x + -89 + x2 = 0 + -89

Reorder the terms:
89 + -89 + -25x + x2 = 0 + -89

Combine like terms: 89 + -89 = 0
0 + -25x + x2 = 0 + -89
-25x + x2 = 0 + -89

Combine like terms: 0 + -89 = -89
-25x + x2 = -89

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 = -89 + 156.25

Reorder the terms:
156.25 + -25x + x2 = -89 + 156.25

Combine like terms: -89 + 156.25 = 67.25
156.25 + -25x + x2 = 67.25

Factor a perfect square on the left side:
(x + -12.5)(x + -12.5) = 67.25

Calculate the square root of the right side: 8.200609733

Break this problem into two subproblems by setting 
(x + -12.5) equal to 8.200609733 and -8.200609733.

Subproblem 1

x + -12.5 = 8.200609733 Simplifying x + -12.5 = 8.200609733 Reorder the terms: -12.5 + x = 8.200609733 Solving -12.5 + x = 8.200609733 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 = 8.200609733 + 12.5 Combine like terms: -12.5 + 12.5 = 0.0 0.0 + x = 8.200609733 + 12.5 x = 8.200609733 + 12.5 Combine like terms: 8.200609733 + 12.5 = 20.700609733 x = 20.700609733 Simplifying x = 20.700609733

Subproblem 2

x + -12.5 = -8.200609733 Simplifying x + -12.5 = -8.200609733 Reorder the terms: -12.5 + x = -8.200609733 Solving -12.5 + x = -8.200609733 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 = -8.200609733 + 12.5 Combine like terms: -12.5 + 12.5 = 0.0 0.0 + x = -8.200609733 + 12.5 x = -8.200609733 + 12.5 Combine like terms: -8.200609733 + 12.5 = 4.299390267 x = 4.299390267 Simplifying x = 4.299390267

Solution

The solution to the problem is based on the solutions from the subproblems. x = {20.700609733, 4.299390267}

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