2v^2+12v+2=(v+3)

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Solution for 2v^2+12v+2=(v+3) equation:


Simplifying
2v2 + 12v + 2 = (v + 3)

Reorder the terms:
2 + 12v + 2v2 = (v + 3)

Reorder the terms:
2 + 12v + 2v2 = (3 + v)

Remove parenthesis around (3 + v)
2 + 12v + 2v2 = 3 + v

Solving
2 + 12v + 2v2 = 3 + v

Solving for variable 'v'.

Reorder the terms:
2 + -3 + 12v + -1v + 2v2 = 3 + v + -3 + -1v

Combine like terms: 2 + -3 = -1
-1 + 12v + -1v + 2v2 = 3 + v + -3 + -1v

Combine like terms: 12v + -1v = 11v
-1 + 11v + 2v2 = 3 + v + -3 + -1v

Reorder the terms:
-1 + 11v + 2v2 = 3 + -3 + v + -1v

Combine like terms: 3 + -3 = 0
-1 + 11v + 2v2 = 0 + v + -1v
-1 + 11v + 2v2 = v + -1v

Combine like terms: v + -1v = 0
-1 + 11v + 2v2 = 0

Begin completing the square.  Divide all terms by
2 the coefficient of the squared term: 

Divide each side by '2'.
-0.5 + 5.5v + v2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + 5.5v + 0.5 + v2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + 5.5v + v2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + 5.5v + v2 = 0 + 0.5
5.5v + v2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
5.5v + v2 = 0.5

The v term is 5.5v.  Take half its coefficient (2.75).
Square it (7.5625) and add it to both sides.

Add '7.5625' to each side of the equation.
5.5v + 7.5625 + v2 = 0.5 + 7.5625

Reorder the terms:
7.5625 + 5.5v + v2 = 0.5 + 7.5625

Combine like terms: 0.5 + 7.5625 = 8.0625
7.5625 + 5.5v + v2 = 8.0625

Factor a perfect square on the left side:
(v + 2.75)(v + 2.75) = 8.0625

Calculate the square root of the right side: 2.839454173

Break this problem into two subproblems by setting 
(v + 2.75) equal to 2.839454173 and -2.839454173.

Subproblem 1

v + 2.75 = 2.839454173 Simplifying v + 2.75 = 2.839454173 Reorder the terms: 2.75 + v = 2.839454173 Solving 2.75 + v = 2.839454173 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-2.75' to each side of the equation. 2.75 + -2.75 + v = 2.839454173 + -2.75 Combine like terms: 2.75 + -2.75 = 0.00 0.00 + v = 2.839454173 + -2.75 v = 2.839454173 + -2.75 Combine like terms: 2.839454173 + -2.75 = 0.089454173 v = 0.089454173 Simplifying v = 0.089454173

Subproblem 2

v + 2.75 = -2.839454173 Simplifying v + 2.75 = -2.839454173 Reorder the terms: 2.75 + v = -2.839454173 Solving 2.75 + v = -2.839454173 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-2.75' to each side of the equation. 2.75 + -2.75 + v = -2.839454173 + -2.75 Combine like terms: 2.75 + -2.75 = 0.00 0.00 + v = -2.839454173 + -2.75 v = -2.839454173 + -2.75 Combine like terms: -2.839454173 + -2.75 = -5.589454173 v = -5.589454173 Simplifying v = -5.589454173

Solution

The solution to the problem is based on the solutions from the subproblems. v = {0.089454173, -5.589454173}

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