-v^2+6.5v=100

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Solution for -v^2+6.5v=100 equation:


Simplifying
-1v2 + 6.5v = 100

Reorder the terms:
6.5v + -1v2 = 100

Solving
6.5v + -1v2 = 100

Solving for variable 'v'.

Reorder the terms:
-100 + 6.5v + -1v2 = 100 + -100

Combine like terms: 100 + -100 = 0
-100 + 6.5v + -1v2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
100 + -6.5v + v2 = 0

Move the constant term to the right:

Add '-100' to each side of the equation.
100 + -6.5v + -100 + v2 = 0 + -100

Reorder the terms:
100 + -100 + -6.5v + v2 = 0 + -100

Combine like terms: 100 + -100 = 0
0 + -6.5v + v2 = 0 + -100
-6.5v + v2 = 0 + -100

Combine like terms: 0 + -100 = -100
-6.5v + v2 = -100

The v term is -6.5v.  Take half its coefficient (-3.25).
Square it (10.5625) and add it to both sides.

Add '10.5625' to each side of the equation.
-6.5v + 10.5625 + v2 = -100 + 10.5625

Reorder the terms:
10.5625 + -6.5v + v2 = -100 + 10.5625

Combine like terms: -100 + 10.5625 = -89.4375
10.5625 + -6.5v + v2 = -89.4375

Factor a perfect square on the left side:
(v + -3.25)(v + -3.25) = -89.4375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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