(2v^2-v+5)+(-6v^2+3v+4)=

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Solution for (2v^2-v+5)+(-6v^2+3v+4)= equation:


Simplifying
(2v2 + -1v + 5) + (-6v2 + 3v + 4) = 0

Reorder the terms:
(5 + -1v + 2v2) + (-6v2 + 3v + 4) = 0

Remove parenthesis around (5 + -1v + 2v2)
5 + -1v + 2v2 + (-6v2 + 3v + 4) = 0

Reorder the terms:
5 + -1v + 2v2 + (4 + 3v + -6v2) = 0

Remove parenthesis around (4 + 3v + -6v2)
5 + -1v + 2v2 + 4 + 3v + -6v2 = 0

Reorder the terms:
5 + 4 + -1v + 3v + 2v2 + -6v2 = 0

Combine like terms: 5 + 4 = 9
9 + -1v + 3v + 2v2 + -6v2 = 0

Combine like terms: -1v + 3v = 2v
9 + 2v + 2v2 + -6v2 = 0

Combine like terms: 2v2 + -6v2 = -4v2
9 + 2v + -4v2 = 0

Solving
9 + 2v + -4v2 = 0

Solving for variable 'v'.

Begin completing the square.  Divide all terms by
-4 the coefficient of the squared term: 

Divide each side by '-4'.
-2.25 + -0.5v + v2 = 0

Move the constant term to the right:

Add '2.25' to each side of the equation.
-2.25 + -0.5v + 2.25 + v2 = 0 + 2.25

Reorder the terms:
-2.25 + 2.25 + -0.5v + v2 = 0 + 2.25

Combine like terms: -2.25 + 2.25 = 0.00
0.00 + -0.5v + v2 = 0 + 2.25
-0.5v + v2 = 0 + 2.25

Combine like terms: 0 + 2.25 = 2.25
-0.5v + v2 = 2.25

The v term is -0.5v.  Take half its coefficient (-0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
-0.5v + 0.0625 + v2 = 2.25 + 0.0625

Reorder the terms:
0.0625 + -0.5v + v2 = 2.25 + 0.0625

Combine like terms: 2.25 + 0.0625 = 2.3125
0.0625 + -0.5v + v2 = 2.3125

Factor a perfect square on the left side:
(v + -0.25)(v + -0.25) = 2.3125

Calculate the square root of the right side: 1.520690633

Break this problem into two subproblems by setting 
(v + -0.25) equal to 1.520690633 and -1.520690633.

Subproblem 1

v + -0.25 = 1.520690633 Simplifying v + -0.25 = 1.520690633 Reorder the terms: -0.25 + v = 1.520690633 Solving -0.25 + v = 1.520690633 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + v = 1.520690633 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + v = 1.520690633 + 0.25 v = 1.520690633 + 0.25 Combine like terms: 1.520690633 + 0.25 = 1.770690633 v = 1.770690633 Simplifying v = 1.770690633

Subproblem 2

v + -0.25 = -1.520690633 Simplifying v + -0.25 = -1.520690633 Reorder the terms: -0.25 + v = -1.520690633 Solving -0.25 + v = -1.520690633 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + v = -1.520690633 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + v = -1.520690633 + 0.25 v = -1.520690633 + 0.25 Combine like terms: -1.520690633 + 0.25 = -1.270690633 v = -1.270690633 Simplifying v = -1.270690633

Solution

The solution to the problem is based on the solutions from the subproblems. v = {1.770690633, -1.270690633}

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