(-4v^2+2v-1)+(6v^2+3v+7)=

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Solution for (-4v^2+2v-1)+(6v^2+3v+7)= equation:


Simplifying
(-4v2 + 2v + -1) + (6v2 + 3v + 7) = 0

Reorder the terms:
(-1 + 2v + -4v2) + (6v2 + 3v + 7) = 0

Remove parenthesis around (-1 + 2v + -4v2)
-1 + 2v + -4v2 + (6v2 + 3v + 7) = 0

Reorder the terms:
-1 + 2v + -4v2 + (7 + 3v + 6v2) = 0

Remove parenthesis around (7 + 3v + 6v2)
-1 + 2v + -4v2 + 7 + 3v + 6v2 = 0

Reorder the terms:
-1 + 7 + 2v + 3v + -4v2 + 6v2 = 0

Combine like terms: -1 + 7 = 6
6 + 2v + 3v + -4v2 + 6v2 = 0

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

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

Solving
6 + 5v + 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'.
3 + 2.5v + v2 = 0

Move the constant term to the right:

Add '-3' to each side of the equation.
3 + 2.5v + -3 + v2 = 0 + -3

Reorder the terms:
3 + -3 + 2.5v + v2 = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 2.5v + v2 = 0 + -3
2.5v + v2 = 0 + -3

Combine like terms: 0 + -3 = -3
2.5v + v2 = -3

The v term is 2.5v.  Take half its coefficient (1.25).
Square it (1.5625) and add it to both sides.

Add '1.5625' to each side of the equation.
2.5v + 1.5625 + v2 = -3 + 1.5625

Reorder the terms:
1.5625 + 2.5v + v2 = -3 + 1.5625

Combine like terms: -3 + 1.5625 = -1.4375
1.5625 + 2.5v + v2 = -1.4375

Factor a perfect square on the left side:
(v + 1.25)(v + 1.25) = -1.4375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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