h^2-20h+25=0

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Solution for h^2-20h+25=0 equation:


Simplifying
h2 + -20h + 25 = 0

Reorder the terms:
25 + -20h + h2 = 0

Solving
25 + -20h + h2 = 0

Solving for variable 'h'.

Begin completing the square.

Move the constant term to the right:

Add '-25' to each side of the equation.
25 + -20h + -25 + h2 = 0 + -25

Reorder the terms:
25 + -25 + -20h + h2 = 0 + -25

Combine like terms: 25 + -25 = 0
0 + -20h + h2 = 0 + -25
-20h + h2 = 0 + -25

Combine like terms: 0 + -25 = -25
-20h + h2 = -25

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

Add '100' to each side of the equation.
-20h + 100 + h2 = -25 + 100

Reorder the terms:
100 + -20h + h2 = -25 + 100

Combine like terms: -25 + 100 = 75
100 + -20h + h2 = 75

Factor a perfect square on the left side:
(h + -10)(h + -10) = 75

Calculate the square root of the right side: 8.660254038

Break this problem into two subproblems by setting 
(h + -10) equal to 8.660254038 and -8.660254038.

Subproblem 1

h + -10 = 8.660254038 Simplifying h + -10 = 8.660254038 Reorder the terms: -10 + h = 8.660254038 Solving -10 + h = 8.660254038 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + h = 8.660254038 + 10 Combine like terms: -10 + 10 = 0 0 + h = 8.660254038 + 10 h = 8.660254038 + 10 Combine like terms: 8.660254038 + 10 = 18.660254038 h = 18.660254038 Simplifying h = 18.660254038

Subproblem 2

h + -10 = -8.660254038 Simplifying h + -10 = -8.660254038 Reorder the terms: -10 + h = -8.660254038 Solving -10 + h = -8.660254038 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + h = -8.660254038 + 10 Combine like terms: -10 + 10 = 0 0 + h = -8.660254038 + 10 h = -8.660254038 + 10 Combine like terms: -8.660254038 + 10 = 1.339745962 h = 1.339745962 Simplifying h = 1.339745962

Solution

The solution to the problem is based on the solutions from the subproblems. h = {18.660254038, 1.339745962}

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