h^2-4h-6=0

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Solution for h^2-4h-6=0 equation:


Simplifying
h2 + -4h + -6 = 0

Reorder the terms:
-6 + -4h + h2 = 0

Solving
-6 + -4h + h2 = 0

Solving for variable 'h'.

Begin completing the square.

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + -4h + 6 + h2 = 0 + 6

Reorder the terms:
-6 + 6 + -4h + h2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -4h + h2 = 0 + 6
-4h + h2 = 0 + 6

Combine like terms: 0 + 6 = 6
-4h + h2 = 6

The h term is -4h.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4h + 4 + h2 = 6 + 4

Reorder the terms:
4 + -4h + h2 = 6 + 4

Combine like terms: 6 + 4 = 10
4 + -4h + h2 = 10

Factor a perfect square on the left side:
(h + -2)(h + -2) = 10

Calculate the square root of the right side: 3.16227766

Break this problem into two subproblems by setting 
(h + -2) equal to 3.16227766 and -3.16227766.

Subproblem 1

h + -2 = 3.16227766 Simplifying h + -2 = 3.16227766 Reorder the terms: -2 + h = 3.16227766 Solving -2 + h = 3.16227766 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + h = 3.16227766 + 2 Combine like terms: -2 + 2 = 0 0 + h = 3.16227766 + 2 h = 3.16227766 + 2 Combine like terms: 3.16227766 + 2 = 5.16227766 h = 5.16227766 Simplifying h = 5.16227766

Subproblem 2

h + -2 = -3.16227766 Simplifying h + -2 = -3.16227766 Reorder the terms: -2 + h = -3.16227766 Solving -2 + h = -3.16227766 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + h = -3.16227766 + 2 Combine like terms: -2 + 2 = 0 0 + h = -3.16227766 + 2 h = -3.16227766 + 2 Combine like terms: -3.16227766 + 2 = -1.16227766 h = -1.16227766 Simplifying h = -1.16227766

Solution

The solution to the problem is based on the solutions from the subproblems. h = {5.16227766, -1.16227766}

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