h^2-8h-49=0

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Solution for h^2-8h-49=0 equation:


Simplifying
h2 + -8h + -49 = 0

Reorder the terms:
-49 + -8h + h2 = 0

Solving
-49 + -8h + h2 = 0

Solving for variable 'h'.

Begin completing the square.

Move the constant term to the right:

Add '49' to each side of the equation.
-49 + -8h + 49 + h2 = 0 + 49

Reorder the terms:
-49 + 49 + -8h + h2 = 0 + 49

Combine like terms: -49 + 49 = 0
0 + -8h + h2 = 0 + 49
-8h + h2 = 0 + 49

Combine like terms: 0 + 49 = 49
-8h + h2 = 49

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 = 49 + 16

Reorder the terms:
16 + -8h + h2 = 49 + 16

Combine like terms: 49 + 16 = 65
16 + -8h + h2 = 65

Factor a perfect square on the left side:
(h + -4)(h + -4) = 65

Calculate the square root of the right side: 8.062257748

Break this problem into two subproblems by setting 
(h + -4) equal to 8.062257748 and -8.062257748.

Subproblem 1

h + -4 = 8.062257748 Simplifying h + -4 = 8.062257748 Reorder the terms: -4 + h = 8.062257748 Solving -4 + h = 8.062257748 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 = 8.062257748 + 4 Combine like terms: -4 + 4 = 0 0 + h = 8.062257748 + 4 h = 8.062257748 + 4 Combine like terms: 8.062257748 + 4 = 12.062257748 h = 12.062257748 Simplifying h = 12.062257748

Subproblem 2

h + -4 = -8.062257748 Simplifying h + -4 = -8.062257748 Reorder the terms: -4 + h = -8.062257748 Solving -4 + h = -8.062257748 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 = -8.062257748 + 4 Combine like terms: -4 + 4 = 0 0 + h = -8.062257748 + 4 h = -8.062257748 + 4 Combine like terms: -8.062257748 + 4 = -4.062257748 h = -4.062257748 Simplifying h = -4.062257748

Solution

The solution to the problem is based on the solutions from the subproblems. h = {12.062257748, -4.062257748}

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