h^2+16h=11

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Solution for h^2+16h=11 equation:


Simplifying
h2 + 16h = 11

Reorder the terms:
16h + h2 = 11

Solving
16h + h2 = 11

Solving for variable 'h'.

Reorder the terms:
-11 + 16h + h2 = 11 + -11

Combine like terms: 11 + -11 = 0
-11 + 16h + h2 = 0

Begin completing the square.

Move the constant term to the right:

Add '11' to each side of the equation.
-11 + 16h + 11 + h2 = 0 + 11

Reorder the terms:
-11 + 11 + 16h + h2 = 0 + 11

Combine like terms: -11 + 11 = 0
0 + 16h + h2 = 0 + 11
16h + h2 = 0 + 11

Combine like terms: 0 + 11 = 11
16h + h2 = 11

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 = 11 + 64

Reorder the terms:
64 + 16h + h2 = 11 + 64

Combine like terms: 11 + 64 = 75
64 + 16h + h2 = 75

Factor a perfect square on the left side:
(h + 8)(h + 8) = 75

Calculate the square root of the right side: 8.660254038

Break this problem into two subproblems by setting 
(h + 8) equal to 8.660254038 and -8.660254038.

Subproblem 1

h + 8 = 8.660254038 Simplifying h + 8 = 8.660254038 Reorder the terms: 8 + h = 8.660254038 Solving 8 + h = 8.660254038 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 = 8.660254038 + -8 Combine like terms: 8 + -8 = 0 0 + h = 8.660254038 + -8 h = 8.660254038 + -8 Combine like terms: 8.660254038 + -8 = 0.660254038 h = 0.660254038 Simplifying h = 0.660254038

Subproblem 2

h + 8 = -8.660254038 Simplifying h + 8 = -8.660254038 Reorder the terms: 8 + h = -8.660254038 Solving 8 + h = -8.660254038 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 = -8.660254038 + -8 Combine like terms: 8 + -8 = 0 0 + h = -8.660254038 + -8 h = -8.660254038 + -8 Combine like terms: -8.660254038 + -8 = -16.660254038 h = -16.660254038 Simplifying h = -16.660254038

Solution

The solution to the problem is based on the solutions from the subproblems. h = {0.660254038, -16.660254038}

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