h^2+8h-17=0

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Solution for h^2+8h-17=0 equation:


Simplifying
h2 + 8h + -17 = 0

Reorder the terms:
-17 + 8h + h2 = 0

Solving
-17 + 8h + h2 = 0

Solving for variable 'h'.

Begin completing the square.

Move the constant term to the right:

Add '17' to each side of the equation.
-17 + 8h + 17 + h2 = 0 + 17

Reorder the terms:
-17 + 17 + 8h + h2 = 0 + 17

Combine like terms: -17 + 17 = 0
0 + 8h + h2 = 0 + 17
8h + h2 = 0 + 17

Combine like terms: 0 + 17 = 17
8h + h2 = 17

The h term is 8h.  Take half its coefficient (4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
8h + 16 + h2 = 17 + 16

Reorder the terms:
16 + 8h + h2 = 17 + 16

Combine like terms: 17 + 16 = 33
16 + 8h + h2 = 33

Factor a perfect square on the left side:
(h + 4)(h + 4) = 33

Calculate the square root of the right side: 5.744562647

Break this problem into two subproblems by setting 
(h + 4) equal to 5.744562647 and -5.744562647.

Subproblem 1

h + 4 = 5.744562647 Simplifying h + 4 = 5.744562647 Reorder the terms: 4 + h = 5.744562647 Solving 4 + h = 5.744562647 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + h = 5.744562647 + -4 Combine like terms: 4 + -4 = 0 0 + h = 5.744562647 + -4 h = 5.744562647 + -4 Combine like terms: 5.744562647 + -4 = 1.744562647 h = 1.744562647 Simplifying h = 1.744562647

Subproblem 2

h + 4 = -5.744562647 Simplifying h + 4 = -5.744562647 Reorder the terms: 4 + h = -5.744562647 Solving 4 + h = -5.744562647 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + h = -5.744562647 + -4 Combine like terms: 4 + -4 = 0 0 + h = -5.744562647 + -4 h = -5.744562647 + -4 Combine like terms: -5.744562647 + -4 = -9.744562647 h = -9.744562647 Simplifying h = -9.744562647

Solution

The solution to the problem is based on the solutions from the subproblems. h = {1.744562647, -9.744562647}

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