3v^2+36v+49=0

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Solution for 3v^2+36v+49=0 equation:


Simplifying
3v2 + 36v + 49 = 0

Reorder the terms:
49 + 36v + 3v2 = 0

Solving
49 + 36v + 3v2 = 0

Solving for variable 'v'.

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

Divide each side by '3'.
16.33333333 + 12v + v2 = 0

Move the constant term to the right:

Add '-16.33333333' to each side of the equation.
16.33333333 + 12v + -16.33333333 + v2 = 0 + -16.33333333

Reorder the terms:
16.33333333 + -16.33333333 + 12v + v2 = 0 + -16.33333333

Combine like terms: 16.33333333 + -16.33333333 = 0.00000000
0.00000000 + 12v + v2 = 0 + -16.33333333
12v + v2 = 0 + -16.33333333

Combine like terms: 0 + -16.33333333 = -16.33333333
12v + v2 = -16.33333333

The v term is 12v.  Take half its coefficient (6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
12v + 36 + v2 = -16.33333333 + 36

Reorder the terms:
36 + 12v + v2 = -16.33333333 + 36

Combine like terms: -16.33333333 + 36 = 19.66666667
36 + 12v + v2 = 19.66666667

Factor a perfect square on the left side:
(v + 6)(v + 6) = 19.66666667

Calculate the square root of the right side: 4.434711566

Break this problem into two subproblems by setting 
(v + 6) equal to 4.434711566 and -4.434711566.

Subproblem 1

v + 6 = 4.434711566 Simplifying v + 6 = 4.434711566 Reorder the terms: 6 + v = 4.434711566 Solving 6 + v = 4.434711566 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + v = 4.434711566 + -6 Combine like terms: 6 + -6 = 0 0 + v = 4.434711566 + -6 v = 4.434711566 + -6 Combine like terms: 4.434711566 + -6 = -1.565288434 v = -1.565288434 Simplifying v = -1.565288434

Subproblem 2

v + 6 = -4.434711566 Simplifying v + 6 = -4.434711566 Reorder the terms: 6 + v = -4.434711566 Solving 6 + v = -4.434711566 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + v = -4.434711566 + -6 Combine like terms: 6 + -6 = 0 0 + v = -4.434711566 + -6 v = -4.434711566 + -6 Combine like terms: -4.434711566 + -6 = -10.434711566 v = -10.434711566 Simplifying v = -10.434711566

Solution

The solution to the problem is based on the solutions from the subproblems. v = {-1.565288434, -10.434711566}

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