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

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


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

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

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

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

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

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

Combine like terms: 2 + 7 = 9
9 + v + 6v + 5v2 + 3v2 = 0

Combine like terms: v + 6v = 7v
9 + 7v + 5v2 + 3v2 = 0

Combine like terms: 5v2 + 3v2 = 8v2
9 + 7v + 8v2 = 0

Solving
9 + 7v + 8v2 = 0

Solving for variable 'v'.

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

Divide each side by '8'.
1.125 + 0.875v + v2 = 0

Move the constant term to the right:

Add '-1.125' to each side of the equation.
1.125 + 0.875v + -1.125 + v2 = 0 + -1.125

Reorder the terms:
1.125 + -1.125 + 0.875v + v2 = 0 + -1.125

Combine like terms: 1.125 + -1.125 = 0.000
0.000 + 0.875v + v2 = 0 + -1.125
0.875v + v2 = 0 + -1.125

Combine like terms: 0 + -1.125 = -1.125
0.875v + v2 = -1.125

The v term is 0.875v.  Take half its coefficient (0.4375).
Square it (0.19140625) and add it to both sides.

Add '0.19140625' to each side of the equation.
0.875v + 0.19140625 + v2 = -1.125 + 0.19140625

Reorder the terms:
0.19140625 + 0.875v + v2 = -1.125 + 0.19140625

Combine like terms: -1.125 + 0.19140625 = -0.93359375
0.19140625 + 0.875v + v2 = -0.93359375

Factor a perfect square on the left side:
(v + 0.4375)(v + 0.4375) = -0.93359375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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