h^2-26h=-9

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Solution for h^2-26h=-9 equation:


Simplifying
h2 + -26h = -9

Reorder the terms:
-26h + h2 = -9

Solving
-26h + h2 = -9

Solving for variable 'h'.

Reorder the terms:
9 + -26h + h2 = -9 + 9

Combine like terms: -9 + 9 = 0
9 + -26h + h2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-9' to each side of the equation.
9 + -26h + -9 + h2 = 0 + -9

Reorder the terms:
9 + -9 + -26h + h2 = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -26h + h2 = 0 + -9
-26h + h2 = 0 + -9

Combine like terms: 0 + -9 = -9
-26h + h2 = -9

The h term is -26h.  Take half its coefficient (-13).
Square it (169) and add it to both sides.

Add '169' to each side of the equation.
-26h + 169 + h2 = -9 + 169

Reorder the terms:
169 + -26h + h2 = -9 + 169

Combine like terms: -9 + 169 = 160
169 + -26h + h2 = 160

Factor a perfect square on the left side:
(h + -13)(h + -13) = 160

Calculate the square root of the right side: 12.649110641

Break this problem into two subproblems by setting 
(h + -13) equal to 12.649110641 and -12.649110641.

Subproblem 1

h + -13 = 12.649110641 Simplifying h + -13 = 12.649110641 Reorder the terms: -13 + h = 12.649110641 Solving -13 + h = 12.649110641 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + h = 12.649110641 + 13 Combine like terms: -13 + 13 = 0 0 + h = 12.649110641 + 13 h = 12.649110641 + 13 Combine like terms: 12.649110641 + 13 = 25.649110641 h = 25.649110641 Simplifying h = 25.649110641

Subproblem 2

h + -13 = -12.649110641 Simplifying h + -13 = -12.649110641 Reorder the terms: -13 + h = -12.649110641 Solving -13 + h = -12.649110641 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + h = -12.649110641 + 13 Combine like terms: -13 + 13 = 0 0 + h = -12.649110641 + 13 h = -12.649110641 + 13 Combine like terms: -12.649110641 + 13 = 0.350889359 h = 0.350889359 Simplifying h = 0.350889359

Solution

The solution to the problem is based on the solutions from the subproblems. h = {25.649110641, 0.350889359}

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