0=-h^2+10h+5

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Solution for 0=-h^2+10h+5 equation:


Simplifying
0 = -1h2 + 10h + 5

Reorder the terms:
0 = 5 + 10h + -1h2

Solving
0 = 5 + 10h + -1h2

Solving for variable 'h'.

Combine like terms: 0 + -5 = -5
-5 + -10h + h2 = 5 + 10h + -1h2 + -5 + -10h + h2

Reorder the terms:
-5 + -10h + h2 = 5 + -5 + 10h + -10h + -1h2 + h2

Combine like terms: 5 + -5 = 0
-5 + -10h + h2 = 0 + 10h + -10h + -1h2 + h2
-5 + -10h + h2 = 10h + -10h + -1h2 + h2

Combine like terms: 10h + -10h = 0
-5 + -10h + h2 = 0 + -1h2 + h2
-5 + -10h + h2 = -1h2 + h2

Combine like terms: -1h2 + h2 = 0
-5 + -10h + h2 = 0

Begin completing the square.

Move the constant term to the right:

Add '5' to each side of the equation.
-5 + -10h + 5 + h2 = 0 + 5

Reorder the terms:
-5 + 5 + -10h + h2 = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -10h + h2 = 0 + 5
-10h + h2 = 0 + 5

Combine like terms: 0 + 5 = 5
-10h + h2 = 5

The h term is -10h.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10h + 25 + h2 = 5 + 25

Reorder the terms:
25 + -10h + h2 = 5 + 25

Combine like terms: 5 + 25 = 30
25 + -10h + h2 = 30

Factor a perfect square on the left side:
(h + -5)(h + -5) = 30

Calculate the square root of the right side: 5.477225575

Break this problem into two subproblems by setting 
(h + -5) equal to 5.477225575 and -5.477225575.

Subproblem 1

h + -5 = 5.477225575 Simplifying h + -5 = 5.477225575 Reorder the terms: -5 + h = 5.477225575 Solving -5 + h = 5.477225575 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + h = 5.477225575 + 5 Combine like terms: -5 + 5 = 0 0 + h = 5.477225575 + 5 h = 5.477225575 + 5 Combine like terms: 5.477225575 + 5 = 10.477225575 h = 10.477225575 Simplifying h = 10.477225575

Subproblem 2

h + -5 = -5.477225575 Simplifying h + -5 = -5.477225575 Reorder the terms: -5 + h = -5.477225575 Solving -5 + h = -5.477225575 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + h = -5.477225575 + 5 Combine like terms: -5 + 5 = 0 0 + h = -5.477225575 + 5 h = -5.477225575 + 5 Combine like terms: -5.477225575 + 5 = -0.477225575 h = -0.477225575 Simplifying h = -0.477225575

Solution

The solution to the problem is based on the solutions from the subproblems. h = {10.477225575, -0.477225575}

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