6h^2+8h-9=0

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Solution for 6h^2+8h-9=0 equation:


Simplifying
6h2 + 8h + -9 = 0

Reorder the terms:
-9 + 8h + 6h2 = 0

Solving
-9 + 8h + 6h2 = 0

Solving for variable 'h'.

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

Divide each side by '6'.
-1.5 + 1.333333333h + h2 = 0

Move the constant term to the right:

Add '1.5' to each side of the equation.
-1.5 + 1.333333333h + 1.5 + h2 = 0 + 1.5

Reorder the terms:
-1.5 + 1.5 + 1.333333333h + h2 = 0 + 1.5

Combine like terms: -1.5 + 1.5 = 0.0
0.0 + 1.333333333h + h2 = 0 + 1.5
1.333333333h + h2 = 0 + 1.5

Combine like terms: 0 + 1.5 = 1.5
1.333333333h + h2 = 1.5

The h term is 1.333333333h.  Take half its coefficient (0.6666666665).
Square it (0.4444444442) and add it to both sides.

Add '0.4444444442' to each side of the equation.
1.333333333h + 0.4444444442 + h2 = 1.5 + 0.4444444442

Reorder the terms:
0.4444444442 + 1.333333333h + h2 = 1.5 + 0.4444444442

Combine like terms: 1.5 + 0.4444444442 = 1.9444444442
0.4444444442 + 1.333333333h + h2 = 1.9444444442

Factor a perfect square on the left side:
(h + 0.6666666665)(h + 0.6666666665) = 1.9444444442

Calculate the square root of the right side: 1.394433377

Break this problem into two subproblems by setting 
(h + 0.6666666665) equal to 1.394433377 and -1.394433377.

Subproblem 1

h + 0.6666666665 = 1.394433377 Simplifying h + 0.6666666665 = 1.394433377 Reorder the terms: 0.6666666665 + h = 1.394433377 Solving 0.6666666665 + h = 1.394433377 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '-0.6666666665' to each side of the equation. 0.6666666665 + -0.6666666665 + h = 1.394433377 + -0.6666666665 Combine like terms: 0.6666666665 + -0.6666666665 = 0.0000000000 0.0000000000 + h = 1.394433377 + -0.6666666665 h = 1.394433377 + -0.6666666665 Combine like terms: 1.394433377 + -0.6666666665 = 0.7277667105 h = 0.7277667105 Simplifying h = 0.7277667105

Subproblem 2

h + 0.6666666665 = -1.394433377 Simplifying h + 0.6666666665 = -1.394433377 Reorder the terms: 0.6666666665 + h = -1.394433377 Solving 0.6666666665 + h = -1.394433377 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '-0.6666666665' to each side of the equation. 0.6666666665 + -0.6666666665 + h = -1.394433377 + -0.6666666665 Combine like terms: 0.6666666665 + -0.6666666665 = 0.0000000000 0.0000000000 + h = -1.394433377 + -0.6666666665 h = -1.394433377 + -0.6666666665 Combine like terms: -1.394433377 + -0.6666666665 = -2.0611000435 h = -2.0611000435 Simplifying h = -2.0611000435

Solution

The solution to the problem is based on the solutions from the subproblems. h = {0.7277667105, -2.0611000435}

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