u^2-20u+95=0

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Solution for u^2-20u+95=0 equation:


Simplifying
u2 + -20u + 95 = 0

Reorder the terms:
95 + -20u + u2 = 0

Solving
95 + -20u + u2 = 0

Solving for variable 'u'.

Begin completing the square.

Move the constant term to the right:

Add '-95' to each side of the equation.
95 + -20u + -95 + u2 = 0 + -95

Reorder the terms:
95 + -95 + -20u + u2 = 0 + -95

Combine like terms: 95 + -95 = 0
0 + -20u + u2 = 0 + -95
-20u + u2 = 0 + -95

Combine like terms: 0 + -95 = -95
-20u + u2 = -95

The u term is -20u.  Take half its coefficient (-10).
Square it (100) and add it to both sides.

Add '100' to each side of the equation.
-20u + 100 + u2 = -95 + 100

Reorder the terms:
100 + -20u + u2 = -95 + 100

Combine like terms: -95 + 100 = 5
100 + -20u + u2 = 5

Factor a perfect square on the left side:
(u + -10)(u + -10) = 5

Calculate the square root of the right side: 2.236067978

Break this problem into two subproblems by setting 
(u + -10) equal to 2.236067978 and -2.236067978.

Subproblem 1

u + -10 = 2.236067978 Simplifying u + -10 = 2.236067978 Reorder the terms: -10 + u = 2.236067978 Solving -10 + u = 2.236067978 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + u = 2.236067978 + 10 Combine like terms: -10 + 10 = 0 0 + u = 2.236067978 + 10 u = 2.236067978 + 10 Combine like terms: 2.236067978 + 10 = 12.236067978 u = 12.236067978 Simplifying u = 12.236067978

Subproblem 2

u + -10 = -2.236067978 Simplifying u + -10 = -2.236067978 Reorder the terms: -10 + u = -2.236067978 Solving -10 + u = -2.236067978 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + u = -2.236067978 + 10 Combine like terms: -10 + 10 = 0 0 + u = -2.236067978 + 10 u = -2.236067978 + 10 Combine like terms: -2.236067978 + 10 = 7.763932022 u = 7.763932022 Simplifying u = 7.763932022

Solution

The solution to the problem is based on the solutions from the subproblems. u = {12.236067978, 7.763932022}

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