(-2v^2+v-6)+(3v^2+7v+5)=

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Solution for (-2v^2+v-6)+(3v^2+7v+5)= equation:


Simplifying
(-2v2 + v + -6) + (3v2 + 7v + 5) = 0

Reorder the terms:
(-6 + v + -2v2) + (3v2 + 7v + 5) = 0

Remove parenthesis around (-6 + v + -2v2)
-6 + v + -2v2 + (3v2 + 7v + 5) = 0

Reorder the terms:
-6 + v + -2v2 + (5 + 7v + 3v2) = 0

Remove parenthesis around (5 + 7v + 3v2)
-6 + v + -2v2 + 5 + 7v + 3v2 = 0

Reorder the terms:
-6 + 5 + v + 7v + -2v2 + 3v2 = 0

Combine like terms: -6 + 5 = -1
-1 + v + 7v + -2v2 + 3v2 = 0

Combine like terms: v + 7v = 8v
-1 + 8v + -2v2 + 3v2 = 0

Combine like terms: -2v2 + 3v2 = 1v2
-1 + 8v + 1v2 = 0

Solving
-1 + 8v + 1v2 = 0

Solving for variable 'v'.

Begin completing the square.

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + 8v + 1 + v2 = 0 + 1

Reorder the terms:
-1 + 1 + 8v + v2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 8v + v2 = 0 + 1
8v + v2 = 0 + 1

Combine like terms: 0 + 1 = 1
8v + v2 = 1

The v term is 8v.  Take half its coefficient (4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
8v + 16 + v2 = 1 + 16

Reorder the terms:
16 + 8v + v2 = 1 + 16

Combine like terms: 1 + 16 = 17
16 + 8v + v2 = 17

Factor a perfect square on the left side:
(v + 4)(v + 4) = 17

Calculate the square root of the right side: 4.123105626

Break this problem into two subproblems by setting 
(v + 4) equal to 4.123105626 and -4.123105626.

Subproblem 1

v + 4 = 4.123105626 Simplifying v + 4 = 4.123105626 Reorder the terms: 4 + v = 4.123105626 Solving 4 + v = 4.123105626 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + v = 4.123105626 + -4 Combine like terms: 4 + -4 = 0 0 + v = 4.123105626 + -4 v = 4.123105626 + -4 Combine like terms: 4.123105626 + -4 = 0.123105626 v = 0.123105626 Simplifying v = 0.123105626

Subproblem 2

v + 4 = -4.123105626 Simplifying v + 4 = -4.123105626 Reorder the terms: 4 + v = -4.123105626 Solving 4 + v = -4.123105626 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + v = -4.123105626 + -4 Combine like terms: 4 + -4 = 0 0 + v = -4.123105626 + -4 v = -4.123105626 + -4 Combine like terms: -4.123105626 + -4 = -8.123105626 v = -8.123105626 Simplifying v = -8.123105626

Solution

The solution to the problem is based on the solutions from the subproblems. v = {0.123105626, -8.123105626}

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