h^2+14h-4=0

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Solution for h^2+14h-4=0 equation:


Simplifying
h2 + 14h + -4 = 0

Reorder the terms:
-4 + 14h + h2 = 0

Solving
-4 + 14h + h2 = 0

Solving for variable 'h'.

Begin completing the square.

Move the constant term to the right:

Add '4' to each side of the equation.
-4 + 14h + 4 + h2 = 0 + 4

Reorder the terms:
-4 + 4 + 14h + h2 = 0 + 4

Combine like terms: -4 + 4 = 0
0 + 14h + h2 = 0 + 4
14h + h2 = 0 + 4

Combine like terms: 0 + 4 = 4
14h + h2 = 4

The h term is 14h.  Take half its coefficient (7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
14h + 49 + h2 = 4 + 49

Reorder the terms:
49 + 14h + h2 = 4 + 49

Combine like terms: 4 + 49 = 53
49 + 14h + h2 = 53

Factor a perfect square on the left side:
(h + 7)(h + 7) = 53

Calculate the square root of the right side: 7.280109889

Break this problem into two subproblems by setting 
(h + 7) equal to 7.280109889 and -7.280109889.

Subproblem 1

h + 7 = 7.280109889 Simplifying h + 7 = 7.280109889 Reorder the terms: 7 + h = 7.280109889 Solving 7 + h = 7.280109889 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + h = 7.280109889 + -7 Combine like terms: 7 + -7 = 0 0 + h = 7.280109889 + -7 h = 7.280109889 + -7 Combine like terms: 7.280109889 + -7 = 0.280109889 h = 0.280109889 Simplifying h = 0.280109889

Subproblem 2

h + 7 = -7.280109889 Simplifying h + 7 = -7.280109889 Reorder the terms: 7 + h = -7.280109889 Solving 7 + h = -7.280109889 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + h = -7.280109889 + -7 Combine like terms: 7 + -7 = 0 0 + h = -7.280109889 + -7 h = -7.280109889 + -7 Combine like terms: -7.280109889 + -7 = -14.280109889 h = -14.280109889 Simplifying h = -14.280109889

Solution

The solution to the problem is based on the solutions from the subproblems. h = {0.280109889, -14.280109889}

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