-h^2+15h+50=0

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Solution for -h^2+15h+50=0 equation:


Simplifying
-1h2 + 15h + 50 = 0

Reorder the terms:
50 + 15h + -1h2 = 0

Solving
50 + 15h + -1h2 = 0

Solving for variable 'h'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-50 + -15h + h2 = 0

Move the constant term to the right:

Add '50' to each side of the equation.
-50 + -15h + 50 + h2 = 0 + 50

Reorder the terms:
-50 + 50 + -15h + h2 = 0 + 50

Combine like terms: -50 + 50 = 0
0 + -15h + h2 = 0 + 50
-15h + h2 = 0 + 50

Combine like terms: 0 + 50 = 50
-15h + h2 = 50

The h term is -15h.  Take half its coefficient (-7.5).
Square it (56.25) and add it to both sides.

Add '56.25' to each side of the equation.
-15h + 56.25 + h2 = 50 + 56.25

Reorder the terms:
56.25 + -15h + h2 = 50 + 56.25

Combine like terms: 50 + 56.25 = 106.25
56.25 + -15h + h2 = 106.25

Factor a perfect square on the left side:
(h + -7.5)(h + -7.5) = 106.25

Calculate the square root of the right side: 10.307764064

Break this problem into two subproblems by setting 
(h + -7.5) equal to 10.307764064 and -10.307764064.

Subproblem 1

h + -7.5 = 10.307764064 Simplifying h + -7.5 = 10.307764064 Reorder the terms: -7.5 + h = 10.307764064 Solving -7.5 + h = 10.307764064 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '7.5' to each side of the equation. -7.5 + 7.5 + h = 10.307764064 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + h = 10.307764064 + 7.5 h = 10.307764064 + 7.5 Combine like terms: 10.307764064 + 7.5 = 17.807764064 h = 17.807764064 Simplifying h = 17.807764064

Subproblem 2

h + -7.5 = -10.307764064 Simplifying h + -7.5 = -10.307764064 Reorder the terms: -7.5 + h = -10.307764064 Solving -7.5 + h = -10.307764064 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '7.5' to each side of the equation. -7.5 + 7.5 + h = -10.307764064 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + h = -10.307764064 + 7.5 h = -10.307764064 + 7.5 Combine like terms: -10.307764064 + 7.5 = -2.807764064 h = -2.807764064 Simplifying h = -2.807764064

Solution

The solution to the problem is based on the solutions from the subproblems. h = {17.807764064, -2.807764064}

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