-9v(6+v)-2v=-10

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Solution for -9v(6+v)-2v=-10 equation:


Simplifying
-9v(6 + v) + -2v = -10
(6 * -9v + v * -9v) + -2v = -10
(-54v + -9v2) + -2v = -10

Reorder the terms:
-54v + -2v + -9v2 = -10

Combine like terms: -54v + -2v = -56v
-56v + -9v2 = -10

Solving
-56v + -9v2 = -10

Solving for variable 'v'.

Reorder the terms:
10 + -56v + -9v2 = -10 + 10

Combine like terms: -10 + 10 = 0
10 + -56v + -9v2 = 0

Begin completing the square.  Divide all terms by
-9 the coefficient of the squared term: 

Divide each side by '-9'.
-1.111111111 + 6.222222222v + v2 = 0

Move the constant term to the right:

Add '1.111111111' to each side of the equation.
-1.111111111 + 6.222222222v + 1.111111111 + v2 = 0 + 1.111111111

Reorder the terms:
-1.111111111 + 1.111111111 + 6.222222222v + v2 = 0 + 1.111111111

Combine like terms: -1.111111111 + 1.111111111 = 0.000000000
0.000000000 + 6.222222222v + v2 = 0 + 1.111111111
6.222222222v + v2 = 0 + 1.111111111

Combine like terms: 0 + 1.111111111 = 1.111111111
6.222222222v + v2 = 1.111111111

The v term is 6.222222222v.  Take half its coefficient (3.111111111).
Square it (9.679012345) and add it to both sides.

Add '9.679012345' to each side of the equation.
6.222222222v + 9.679012345 + v2 = 1.111111111 + 9.679012345

Reorder the terms:
9.679012345 + 6.222222222v + v2 = 1.111111111 + 9.679012345

Combine like terms: 1.111111111 + 9.679012345 = 10.790123456
9.679012345 + 6.222222222v + v2 = 10.790123456

Factor a perfect square on the left side:
(v + 3.111111111)(v + 3.111111111) = 10.790123456

Calculate the square root of the right side: 3.284832333

Break this problem into two subproblems by setting 
(v + 3.111111111) equal to 3.284832333 and -3.284832333.

Subproblem 1

v + 3.111111111 = 3.284832333 Simplifying v + 3.111111111 = 3.284832333 Reorder the terms: 3.111111111 + v = 3.284832333 Solving 3.111111111 + v = 3.284832333 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-3.111111111' to each side of the equation. 3.111111111 + -3.111111111 + v = 3.284832333 + -3.111111111 Combine like terms: 3.111111111 + -3.111111111 = 0.000000000 0.000000000 + v = 3.284832333 + -3.111111111 v = 3.284832333 + -3.111111111 Combine like terms: 3.284832333 + -3.111111111 = 0.173721222 v = 0.173721222 Simplifying v = 0.173721222

Subproblem 2

v + 3.111111111 = -3.284832333 Simplifying v + 3.111111111 = -3.284832333 Reorder the terms: 3.111111111 + v = -3.284832333 Solving 3.111111111 + v = -3.284832333 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-3.111111111' to each side of the equation. 3.111111111 + -3.111111111 + v = -3.284832333 + -3.111111111 Combine like terms: 3.111111111 + -3.111111111 = 0.000000000 0.000000000 + v = -3.284832333 + -3.111111111 v = -3.284832333 + -3.111111111 Combine like terms: -3.284832333 + -3.111111111 = -6.395943444 v = -6.395943444 Simplifying v = -6.395943444

Solution

The solution to the problem is based on the solutions from the subproblems. v = {0.173721222, -6.395943444}

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