0.6h^2-4.5h-3=0

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Solution for 0.6h^2-4.5h-3=0 equation:


Simplifying
0.6h2 + -4.5h + -3 = 0

Reorder the terms:
-3 + -4.5h + 0.6h2 = 0

Solving
-3 + -4.5h + 0.6h2 = 0

Solving for variable 'h'.

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

Divide each side by '0.6'.
-5 + -7.5h + h2 = 0

Move the constant term to the right:

Add '5' to each side of the equation.
-5 + -7.5h + 5 + h2 = 0 + 5

Reorder the terms:
-5 + 5 + -7.5h + h2 = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -7.5h + h2 = 0 + 5
-7.5h + h2 = 0 + 5

Combine like terms: 0 + 5 = 5
-7.5h + h2 = 5

The h term is -7.5h.  Take half its coefficient (-3.75).
Square it (14.0625) and add it to both sides.

Add '14.0625' to each side of the equation.
-7.5h + 14.0625 + h2 = 5 + 14.0625

Reorder the terms:
14.0625 + -7.5h + h2 = 5 + 14.0625

Combine like terms: 5 + 14.0625 = 19.0625
14.0625 + -7.5h + h2 = 19.0625

Factor a perfect square on the left side:
(h + -3.75)(h + -3.75) = 19.0625

Calculate the square root of the right side: 4.366062299

Break this problem into two subproblems by setting 
(h + -3.75) equal to 4.366062299 and -4.366062299.

Subproblem 1

h + -3.75 = 4.366062299 Simplifying h + -3.75 = 4.366062299 Reorder the terms: -3.75 + h = 4.366062299 Solving -3.75 + h = 4.366062299 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '3.75' to each side of the equation. -3.75 + 3.75 + h = 4.366062299 + 3.75 Combine like terms: -3.75 + 3.75 = 0.00 0.00 + h = 4.366062299 + 3.75 h = 4.366062299 + 3.75 Combine like terms: 4.366062299 + 3.75 = 8.116062299 h = 8.116062299 Simplifying h = 8.116062299

Subproblem 2

h + -3.75 = -4.366062299 Simplifying h + -3.75 = -4.366062299 Reorder the terms: -3.75 + h = -4.366062299 Solving -3.75 + h = -4.366062299 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '3.75' to each side of the equation. -3.75 + 3.75 + h = -4.366062299 + 3.75 Combine like terms: -3.75 + 3.75 = 0.00 0.00 + h = -4.366062299 + 3.75 h = -4.366062299 + 3.75 Combine like terms: -4.366062299 + 3.75 = -0.616062299 h = -0.616062299 Simplifying h = -0.616062299

Solution

The solution to the problem is based on the solutions from the subproblems. h = {8.116062299, -0.616062299}

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