u^2-22u=-25

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Solution for u^2-22u=-25 equation:


Simplifying
u2 + -22u = -25

Reorder the terms:
-22u + u2 = -25

Solving
-22u + u2 = -25

Solving for variable 'u'.

Reorder the terms:
25 + -22u + u2 = -25 + 25

Combine like terms: -25 + 25 = 0
25 + -22u + u2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-25' to each side of the equation.
25 + -22u + -25 + u2 = 0 + -25

Reorder the terms:
25 + -25 + -22u + u2 = 0 + -25

Combine like terms: 25 + -25 = 0
0 + -22u + u2 = 0 + -25
-22u + u2 = 0 + -25

Combine like terms: 0 + -25 = -25
-22u + u2 = -25

The u term is -22u.  Take half its coefficient (-11).
Square it (121) and add it to both sides.

Add '121' to each side of the equation.
-22u + 121 + u2 = -25 + 121

Reorder the terms:
121 + -22u + u2 = -25 + 121

Combine like terms: -25 + 121 = 96
121 + -22u + u2 = 96

Factor a perfect square on the left side:
(u + -11)(u + -11) = 96

Calculate the square root of the right side: 9.797958971

Break this problem into two subproblems by setting 
(u + -11) equal to 9.797958971 and -9.797958971.

Subproblem 1

u + -11 = 9.797958971 Simplifying u + -11 = 9.797958971 Reorder the terms: -11 + u = 9.797958971 Solving -11 + u = 9.797958971 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + u = 9.797958971 + 11 Combine like terms: -11 + 11 = 0 0 + u = 9.797958971 + 11 u = 9.797958971 + 11 Combine like terms: 9.797958971 + 11 = 20.797958971 u = 20.797958971 Simplifying u = 20.797958971

Subproblem 2

u + -11 = -9.797958971 Simplifying u + -11 = -9.797958971 Reorder the terms: -11 + u = -9.797958971 Solving -11 + u = -9.797958971 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + u = -9.797958971 + 11 Combine like terms: -11 + 11 = 0 0 + u = -9.797958971 + 11 u = -9.797958971 + 11 Combine like terms: -9.797958971 + 11 = 1.202041029 u = 1.202041029 Simplifying u = 1.202041029

Solution

The solution to the problem is based on the solutions from the subproblems. u = {20.797958971, 1.202041029}

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