h^2+2h+4=170

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Solution for h^2+2h+4=170 equation:


Simplifying
h2 + 2h + 4 = 170

Reorder the terms:
4 + 2h + h2 = 170

Solving
4 + 2h + h2 = 170

Solving for variable 'h'.

Reorder the terms:
4 + -170 + 2h + h2 = 170 + -170

Combine like terms: 4 + -170 = -166
-166 + 2h + h2 = 170 + -170

Combine like terms: 170 + -170 = 0
-166 + 2h + h2 = 0

Begin completing the square.

Move the constant term to the right:

Add '166' to each side of the equation.
-166 + 2h + 166 + h2 = 0 + 166

Reorder the terms:
-166 + 166 + 2h + h2 = 0 + 166

Combine like terms: -166 + 166 = 0
0 + 2h + h2 = 0 + 166
2h + h2 = 0 + 166

Combine like terms: 0 + 166 = 166
2h + h2 = 166

The h term is 2h.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2h + 1 + h2 = 166 + 1

Reorder the terms:
1 + 2h + h2 = 166 + 1

Combine like terms: 166 + 1 = 167
1 + 2h + h2 = 167

Factor a perfect square on the left side:
(h + 1)(h + 1) = 167

Calculate the square root of the right side: 12.922847983

Break this problem into two subproblems by setting 
(h + 1) equal to 12.922847983 and -12.922847983.

Subproblem 1

h + 1 = 12.922847983 Simplifying h + 1 = 12.922847983 Reorder the terms: 1 + h = 12.922847983 Solving 1 + h = 12.922847983 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + h = 12.922847983 + -1 Combine like terms: 1 + -1 = 0 0 + h = 12.922847983 + -1 h = 12.922847983 + -1 Combine like terms: 12.922847983 + -1 = 11.922847983 h = 11.922847983 Simplifying h = 11.922847983

Subproblem 2

h + 1 = -12.922847983 Simplifying h + 1 = -12.922847983 Reorder the terms: 1 + h = -12.922847983 Solving 1 + h = -12.922847983 Solving for variable 'h'. Move all terms containing h to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + h = -12.922847983 + -1 Combine like terms: 1 + -1 = 0 0 + h = -12.922847983 + -1 h = -12.922847983 + -1 Combine like terms: -12.922847983 + -1 = -13.922847983 h = -13.922847983 Simplifying h = -13.922847983

Solution

The solution to the problem is based on the solutions from the subproblems. h = {11.922847983, -13.922847983}

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