(5v^2-8v-8)-(8v^2+3v-6)+(5v^2-3v+1)=

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Solution for (5v^2-8v-8)-(8v^2+3v-6)+(5v^2-3v+1)= equation:


Simplifying
(5v2 + -8v + -8) + -1(8v2 + 3v + -6) + (5v2 + -3v + 1) = 0

Reorder the terms:
(-8 + -8v + 5v2) + -1(8v2 + 3v + -6) + (5v2 + -3v + 1) = 0

Remove parenthesis around (-8 + -8v + 5v2)
-8 + -8v + 5v2 + -1(8v2 + 3v + -6) + (5v2 + -3v + 1) = 0

Reorder the terms:
-8 + -8v + 5v2 + -1(-6 + 3v + 8v2) + (5v2 + -3v + 1) = 0
-8 + -8v + 5v2 + (-6 * -1 + 3v * -1 + 8v2 * -1) + (5v2 + -3v + 1) = 0
-8 + -8v + 5v2 + (6 + -3v + -8v2) + (5v2 + -3v + 1) = 0

Reorder the terms:
-8 + -8v + 5v2 + 6 + -3v + -8v2 + (1 + -3v + 5v2) = 0

Remove parenthesis around (1 + -3v + 5v2)
-8 + -8v + 5v2 + 6 + -3v + -8v2 + 1 + -3v + 5v2 = 0

Reorder the terms:
-8 + 6 + 1 + -8v + -3v + -3v + 5v2 + -8v2 + 5v2 = 0

Combine like terms: -8 + 6 = -2
-2 + 1 + -8v + -3v + -3v + 5v2 + -8v2 + 5v2 = 0

Combine like terms: -2 + 1 = -1
-1 + -8v + -3v + -3v + 5v2 + -8v2 + 5v2 = 0

Combine like terms: -8v + -3v = -11v
-1 + -11v + -3v + 5v2 + -8v2 + 5v2 = 0

Combine like terms: -11v + -3v = -14v
-1 + -14v + 5v2 + -8v2 + 5v2 = 0

Combine like terms: 5v2 + -8v2 = -3v2
-1 + -14v + -3v2 + 5v2 = 0

Combine like terms: -3v2 + 5v2 = 2v2
-1 + -14v + 2v2 = 0

Solving
-1 + -14v + 2v2 = 0

Solving for variable 'v'.

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

Divide each side by '2'.
-0.5 + -7v + v2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + -7v + 0.5 + v2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + -7v + v2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + -7v + v2 = 0 + 0.5
-7v + v2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
-7v + v2 = 0.5

The v term is -7v.  Take half its coefficient (-3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
-7v + 12.25 + v2 = 0.5 + 12.25

Reorder the terms:
12.25 + -7v + v2 = 0.5 + 12.25

Combine like terms: 0.5 + 12.25 = 12.75
12.25 + -7v + v2 = 12.75

Factor a perfect square on the left side:
(v + -3.5)(v + -3.5) = 12.75

Calculate the square root of the right side: 3.570714214

Break this problem into two subproblems by setting 
(v + -3.5) equal to 3.570714214 and -3.570714214.

Subproblem 1

v + -3.5 = 3.570714214 Simplifying v + -3.5 = 3.570714214 Reorder the terms: -3.5 + v = 3.570714214 Solving -3.5 + v = 3.570714214 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + v = 3.570714214 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + v = 3.570714214 + 3.5 v = 3.570714214 + 3.5 Combine like terms: 3.570714214 + 3.5 = 7.070714214 v = 7.070714214 Simplifying v = 7.070714214

Subproblem 2

v + -3.5 = -3.570714214 Simplifying v + -3.5 = -3.570714214 Reorder the terms: -3.5 + v = -3.570714214 Solving -3.5 + v = -3.570714214 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + v = -3.570714214 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + v = -3.570714214 + 3.5 v = -3.570714214 + 3.5 Combine like terms: -3.570714214 + 3.5 = -0.070714214 v = -0.070714214 Simplifying v = -0.070714214

Solution

The solution to the problem is based on the solutions from the subproblems. v = {7.070714214, -0.070714214}

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