7v^2-5v-4=-10

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Solution for 7v^2-5v-4=-10 equation:


Simplifying
7v2 + -5v + -4 = -10

Reorder the terms:
-4 + -5v + 7v2 = -10

Solving
-4 + -5v + 7v2 = -10

Solving for variable 'v'.

Reorder the terms:
-4 + 10 + -5v + 7v2 = -10 + 10

Combine like terms: -4 + 10 = 6
6 + -5v + 7v2 = -10 + 10

Combine like terms: -10 + 10 = 0
6 + -5v + 7v2 = 0

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

Divide each side by '7'.
0.8571428571 + -0.7142857143v + v2 = 0

Move the constant term to the right:

Add '-0.8571428571' to each side of the equation.
0.8571428571 + -0.7142857143v + -0.8571428571 + v2 = 0 + -0.8571428571

Reorder the terms:
0.8571428571 + -0.8571428571 + -0.7142857143v + v2 = 0 + -0.8571428571

Combine like terms: 0.8571428571 + -0.8571428571 = 0.0000000000
0.0000000000 + -0.7142857143v + v2 = 0 + -0.8571428571
-0.7142857143v + v2 = 0 + -0.8571428571

Combine like terms: 0 + -0.8571428571 = -0.8571428571
-0.7142857143v + v2 = -0.8571428571

The v term is -0.7142857143v.  Take half its coefficient (-0.3571428572).
Square it (0.1275510204) and add it to both sides.

Add '0.1275510204' to each side of the equation.
-0.7142857143v + 0.1275510204 + v2 = -0.8571428571 + 0.1275510204

Reorder the terms:
0.1275510204 + -0.7142857143v + v2 = -0.8571428571 + 0.1275510204

Combine like terms: -0.8571428571 + 0.1275510204 = -0.7295918367
0.1275510204 + -0.7142857143v + v2 = -0.7295918367

Factor a perfect square on the left side:
(v + -0.3571428572)(v + -0.3571428572) = -0.7295918367

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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