h^2-5h-70=0

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Solution for h^2-5h-70=0 equation:


Simplifying
h2 + -5h + -70 = 0

Reorder the terms:
-70 + -5h + h2 = 0

Solving
-70 + -5h + h2 = 0

Solving for variable 'h'.

Begin completing the square.

Move the constant term to the right:

Add '70' to each side of the equation.
-70 + -5h + 70 + h2 = 0 + 70

Reorder the terms:
-70 + 70 + -5h + h2 = 0 + 70

Combine like terms: -70 + 70 = 0
0 + -5h + h2 = 0 + 70
-5h + h2 = 0 + 70

Combine like terms: 0 + 70 = 70
-5h + h2 = 70

The h term is -5h.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5h + 6.25 + h2 = 70 + 6.25

Reorder the terms:
6.25 + -5h + h2 = 70 + 6.25

Combine like terms: 70 + 6.25 = 76.25
6.25 + -5h + h2 = 76.25

Factor a perfect square on the left side:
(h + -2.5)(h + -2.5) = 76.25

Calculate the square root of the right side: 8.732124598

Break this problem into two subproblems by setting 
(h + -2.5) equal to 8.732124598 and -8.732124598.

Subproblem 1

h + -2.5 = 8.732124598 Simplifying h + -2.5 = 8.732124598 Reorder the terms: -2.5 + h = 8.732124598 Solving -2.5 + h = 8.732124598 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + h = 8.732124598 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + h = 8.732124598 + 2.5 h = 8.732124598 + 2.5 Combine like terms: 8.732124598 + 2.5 = 11.232124598 h = 11.232124598 Simplifying h = 11.232124598

Subproblem 2

h + -2.5 = -8.732124598 Simplifying h + -2.5 = -8.732124598 Reorder the terms: -2.5 + h = -8.732124598 Solving -2.5 + h = -8.732124598 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + h = -8.732124598 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + h = -8.732124598 + 2.5 h = -8.732124598 + 2.5 Combine like terms: -8.732124598 + 2.5 = -6.232124598 h = -6.232124598 Simplifying h = -6.232124598

Solution

The solution to the problem is based on the solutions from the subproblems. h = {11.232124598, -6.232124598}

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