20.5v^2-30v+40=0

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Solution for 20.5v^2-30v+40=0 equation:


Simplifying
20.5v2 + -30v + 40 = 0

Reorder the terms:
40 + -30v + 20.5v2 = 0

Solving
40 + -30v + 20.5v2 = 0

Solving for variable 'v'.

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

Divide each side by '20.5'.
1.951219512 + -1.463414634v + v2 = 0

Move the constant term to the right:

Add '-1.951219512' to each side of the equation.
1.951219512 + -1.463414634v + -1.951219512 + v2 = 0 + -1.951219512

Reorder the terms:
1.951219512 + -1.951219512 + -1.463414634v + v2 = 0 + -1.951219512

Combine like terms: 1.951219512 + -1.951219512 = 0.000000000
0.000000000 + -1.463414634v + v2 = 0 + -1.951219512
-1.463414634v + v2 = 0 + -1.951219512

Combine like terms: 0 + -1.951219512 = -1.951219512
-1.463414634v + v2 = -1.951219512

The v term is -1.463414634v.  Take half its coefficient (-0.731707317).
Square it (0.5353955978) and add it to both sides.

Add '0.5353955978' to each side of the equation.
-1.463414634v + 0.5353955978 + v2 = -1.951219512 + 0.5353955978

Reorder the terms:
0.5353955978 + -1.463414634v + v2 = -1.951219512 + 0.5353955978

Combine like terms: -1.951219512 + 0.5353955978 = -1.4158239142
0.5353955978 + -1.463414634v + v2 = -1.4158239142

Factor a perfect square on the left side:
(v + -0.731707317)(v + -0.731707317) = -1.4158239142

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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