.5h^2+8h=47

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Solution for .5h^2+8h=47 equation:


Simplifying
0.5h2 + 8h = 47

Reorder the terms:
8h + 0.5h2 = 47

Solving
8h + 0.5h2 = 47

Solving for variable 'h'.

Reorder the terms:
-47 + 8h + 0.5h2 = 47 + -47

Combine like terms: 47 + -47 = 0
-47 + 8h + 0.5h2 = 0

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

Divide each side by '0.5'.
-94 + 16h + h2 = 0

Move the constant term to the right:

Add '94' to each side of the equation.
-94 + 16h + 94 + h2 = 0 + 94

Reorder the terms:
-94 + 94 + 16h + h2 = 0 + 94

Combine like terms: -94 + 94 = 0
0 + 16h + h2 = 0 + 94
16h + h2 = 0 + 94

Combine like terms: 0 + 94 = 94
16h + h2 = 94

The h term is 16h.  Take half its coefficient (8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
16h + 64 + h2 = 94 + 64

Reorder the terms:
64 + 16h + h2 = 94 + 64

Combine like terms: 94 + 64 = 158
64 + 16h + h2 = 158

Factor a perfect square on the left side:
(h + 8)(h + 8) = 158

Calculate the square root of the right side: 12.56980509

Break this problem into two subproblems by setting 
(h + 8) equal to 12.56980509 and -12.56980509.

Subproblem 1

h + 8 = 12.56980509 Simplifying h + 8 = 12.56980509 Reorder the terms: 8 + h = 12.56980509 Solving 8 + h = 12.56980509 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + h = 12.56980509 + -8 Combine like terms: 8 + -8 = 0 0 + h = 12.56980509 + -8 h = 12.56980509 + -8 Combine like terms: 12.56980509 + -8 = 4.56980509 h = 4.56980509 Simplifying h = 4.56980509

Subproblem 2

h + 8 = -12.56980509 Simplifying h + 8 = -12.56980509 Reorder the terms: 8 + h = -12.56980509 Solving 8 + h = -12.56980509 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + h = -12.56980509 + -8 Combine like terms: 8 + -8 = 0 0 + h = -12.56980509 + -8 h = -12.56980509 + -8 Combine like terms: -12.56980509 + -8 = -20.56980509 h = -20.56980509 Simplifying h = -20.56980509

Solution

The solution to the problem is based on the solutions from the subproblems. h = {4.56980509, -20.56980509}

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