(5v^2+2v-5)-(8v^2-6v-2)+(-4v^2-5v-2)=0

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Solution for (5v^2+2v-5)-(8v^2-6v-2)+(-4v^2-5v-2)=0 equation:


Simplifying
(5v2 + 2v + -5) + -1(8v2 + -6v + -2) + (-4v2 + -5v + -2) = 0

Reorder the terms:
(-5 + 2v + 5v2) + -1(8v2 + -6v + -2) + (-4v2 + -5v + -2) = 0

Remove parenthesis around (-5 + 2v + 5v2)
-5 + 2v + 5v2 + -1(8v2 + -6v + -2) + (-4v2 + -5v + -2) = 0

Reorder the terms:
-5 + 2v + 5v2 + -1(-2 + -6v + 8v2) + (-4v2 + -5v + -2) = 0
-5 + 2v + 5v2 + (-2 * -1 + -6v * -1 + 8v2 * -1) + (-4v2 + -5v + -2) = 0
-5 + 2v + 5v2 + (2 + 6v + -8v2) + (-4v2 + -5v + -2) = 0

Reorder the terms:
-5 + 2v + 5v2 + 2 + 6v + -8v2 + (-2 + -5v + -4v2) = 0

Remove parenthesis around (-2 + -5v + -4v2)
-5 + 2v + 5v2 + 2 + 6v + -8v2 + -2 + -5v + -4v2 = 0

Reorder the terms:
-5 + 2 + -2 + 2v + 6v + -5v + 5v2 + -8v2 + -4v2 = 0

Combine like terms: -5 + 2 = -3
-3 + -2 + 2v + 6v + -5v + 5v2 + -8v2 + -4v2 = 0

Combine like terms: -3 + -2 = -5
-5 + 2v + 6v + -5v + 5v2 + -8v2 + -4v2 = 0

Combine like terms: 2v + 6v = 8v
-5 + 8v + -5v + 5v2 + -8v2 + -4v2 = 0

Combine like terms: 8v + -5v = 3v
-5 + 3v + 5v2 + -8v2 + -4v2 = 0

Combine like terms: 5v2 + -8v2 = -3v2
-5 + 3v + -3v2 + -4v2 = 0

Combine like terms: -3v2 + -4v2 = -7v2
-5 + 3v + -7v2 = 0

Solving
-5 + 3v + -7v2 = 0

Solving for variable 'v'.

Begin completing the square.  Divide all terms by
-7 the coefficient of the squared term: 

Divide each side by '-7'.
0.7142857143 + -0.4285714286v + v2 = 0

Move the constant term to the right:

Add '-0.7142857143' to each side of the equation.
0.7142857143 + -0.4285714286v + -0.7142857143 + v2 = 0 + -0.7142857143

Reorder the terms:
0.7142857143 + -0.7142857143 + -0.4285714286v + v2 = 0 + -0.7142857143

Combine like terms: 0.7142857143 + -0.7142857143 = 0.0000000000
0.0000000000 + -0.4285714286v + v2 = 0 + -0.7142857143
-0.4285714286v + v2 = 0 + -0.7142857143

Combine like terms: 0 + -0.7142857143 = -0.7142857143
-0.4285714286v + v2 = -0.7142857143

The v term is -0.4285714286v.  Take half its coefficient (-0.2142857143).
Square it (0.04591836735) and add it to both sides.

Add '0.04591836735' to each side of the equation.
-0.4285714286v + 0.04591836735 + v2 = -0.7142857143 + 0.04591836735

Reorder the terms:
0.04591836735 + -0.4285714286v + v2 = -0.7142857143 + 0.04591836735

Combine like terms: -0.7142857143 + 0.04591836735 = -0.66836734695
0.04591836735 + -0.4285714286v + v2 = -0.66836734695

Factor a perfect square on the left side:
(v + -0.2142857143)(v + -0.2142857143) = -0.66836734695

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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