h^2+42=16h

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Solution for h^2+42=16h equation:


Simplifying
h2 + 42 = 16h

Reorder the terms:
42 + h2 = 16h

Solving
42 + h2 = 16h

Solving for variable 'h'.

Reorder the terms:
42 + -16h + h2 = 16h + -16h

Combine like terms: 16h + -16h = 0
42 + -16h + h2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-42' to each side of the equation.
42 + -16h + -42 + h2 = 0 + -42

Reorder the terms:
42 + -42 + -16h + h2 = 0 + -42

Combine like terms: 42 + -42 = 0
0 + -16h + h2 = 0 + -42
-16h + h2 = 0 + -42

Combine like terms: 0 + -42 = -42
-16h + h2 = -42

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 = -42 + 64

Reorder the terms:
64 + -16h + h2 = -42 + 64

Combine like terms: -42 + 64 = 22
64 + -16h + h2 = 22

Factor a perfect square on the left side:
(h + -8)(h + -8) = 22

Calculate the square root of the right side: 4.69041576

Break this problem into two subproblems by setting 
(h + -8) equal to 4.69041576 and -4.69041576.

Subproblem 1

h + -8 = 4.69041576 Simplifying h + -8 = 4.69041576 Reorder the terms: -8 + h = 4.69041576 Solving -8 + h = 4.69041576 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 = 4.69041576 + 8 Combine like terms: -8 + 8 = 0 0 + h = 4.69041576 + 8 h = 4.69041576 + 8 Combine like terms: 4.69041576 + 8 = 12.69041576 h = 12.69041576 Simplifying h = 12.69041576

Subproblem 2

h + -8 = -4.69041576 Simplifying h + -8 = -4.69041576 Reorder the terms: -8 + h = -4.69041576 Solving -8 + h = -4.69041576 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 = -4.69041576 + 8 Combine like terms: -8 + 8 = 0 0 + h = -4.69041576 + 8 h = -4.69041576 + 8 Combine like terms: -4.69041576 + 8 = 3.30958424 h = 3.30958424 Simplifying h = 3.30958424

Solution

The solution to the problem is based on the solutions from the subproblems. h = {12.69041576, 3.30958424}

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