1-9h^2=12h

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Solution for 1-9h^2=12h equation:


Simplifying
1 + -9h2 = 12h

Solving
1 + -9h2 = 12h

Solving for variable 'h'.

Reorder the terms:
1 + -12h + -9h2 = 12h + -12h

Combine like terms: 12h + -12h = 0
1 + -12h + -9h2 = 0

Begin completing the square.  Divide all terms by
-9 the coefficient of the squared term: 

Divide each side by '-9'.
-0.1111111111 + 1.333333333h + h2 = 0

Move the constant term to the right:

Add '0.1111111111' to each side of the equation.
-0.1111111111 + 1.333333333h + 0.1111111111 + h2 = 0 + 0.1111111111

Reorder the terms:
-0.1111111111 + 0.1111111111 + 1.333333333h + h2 = 0 + 0.1111111111

Combine like terms: -0.1111111111 + 0.1111111111 = 0.0000000000
0.0000000000 + 1.333333333h + h2 = 0 + 0.1111111111
1.333333333h + h2 = 0 + 0.1111111111

Combine like terms: 0 + 0.1111111111 = 0.1111111111
1.333333333h + h2 = 0.1111111111

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 = 0.1111111111 + 0.4444444442

Reorder the terms:
0.4444444442 + 1.333333333h + h2 = 0.1111111111 + 0.4444444442

Combine like terms: 0.1111111111 + 0.4444444442 = 0.5555555553
0.4444444442 + 1.333333333h + h2 = 0.5555555553

Factor a perfect square on the left side:
(h + 0.6666666665)(h + 0.6666666665) = 0.5555555553

Calculate the square root of the right side: 0.745355992

Break this problem into two subproblems by setting 
(h + 0.6666666665) equal to 0.745355992 and -0.745355992.

Subproblem 1

h + 0.6666666665 = 0.745355992 Simplifying h + 0.6666666665 = 0.745355992 Reorder the terms: 0.6666666665 + h = 0.745355992 Solving 0.6666666665 + h = 0.745355992 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 = 0.745355992 + -0.6666666665 Combine like terms: 0.6666666665 + -0.6666666665 = 0.0000000000 0.0000000000 + h = 0.745355992 + -0.6666666665 h = 0.745355992 + -0.6666666665 Combine like terms: 0.745355992 + -0.6666666665 = 0.0786893255 h = 0.0786893255 Simplifying h = 0.0786893255

Subproblem 2

h + 0.6666666665 = -0.745355992 Simplifying h + 0.6666666665 = -0.745355992 Reorder the terms: 0.6666666665 + h = -0.745355992 Solving 0.6666666665 + h = -0.745355992 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 = -0.745355992 + -0.6666666665 Combine like terms: 0.6666666665 + -0.6666666665 = 0.0000000000 0.0000000000 + h = -0.745355992 + -0.6666666665 h = -0.745355992 + -0.6666666665 Combine like terms: -0.745355992 + -0.6666666665 = -1.4120226585 h = -1.4120226585 Simplifying h = -1.4120226585

Solution

The solution to the problem is based on the solutions from the subproblems. h = {0.0786893255, -1.4120226585}

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