h^2-20h+73=0

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Solution for h^2-20h+73=0 equation:


Simplifying
h2 + -20h + 73 = 0

Reorder the terms:
73 + -20h + h2 = 0

Solving
73 + -20h + h2 = 0

Solving for variable 'h'.

Begin completing the square.

Move the constant term to the right:

Add '-73' to each side of the equation.
73 + -20h + -73 + h2 = 0 + -73

Reorder the terms:
73 + -73 + -20h + h2 = 0 + -73

Combine like terms: 73 + -73 = 0
0 + -20h + h2 = 0 + -73
-20h + h2 = 0 + -73

Combine like terms: 0 + -73 = -73
-20h + h2 = -73

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 = -73 + 100

Reorder the terms:
100 + -20h + h2 = -73 + 100

Combine like terms: -73 + 100 = 27
100 + -20h + h2 = 27

Factor a perfect square on the left side:
(h + -10)(h + -10) = 27

Calculate the square root of the right side: 5.196152423

Break this problem into two subproblems by setting 
(h + -10) equal to 5.196152423 and -5.196152423.

Subproblem 1

h + -10 = 5.196152423 Simplifying h + -10 = 5.196152423 Reorder the terms: -10 + h = 5.196152423 Solving -10 + h = 5.196152423 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 = 5.196152423 + 10 Combine like terms: -10 + 10 = 0 0 + h = 5.196152423 + 10 h = 5.196152423 + 10 Combine like terms: 5.196152423 + 10 = 15.196152423 h = 15.196152423 Simplifying h = 15.196152423

Subproblem 2

h + -10 = -5.196152423 Simplifying h + -10 = -5.196152423 Reorder the terms: -10 + h = -5.196152423 Solving -10 + h = -5.196152423 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 = -5.196152423 + 10 Combine like terms: -10 + 10 = 0 0 + h = -5.196152423 + 10 h = -5.196152423 + 10 Combine like terms: -5.196152423 + 10 = 4.803847577 h = 4.803847577 Simplifying h = 4.803847577

Solution

The solution to the problem is based on the solutions from the subproblems. h = {15.196152423, 4.803847577}

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