40+v*3(5+v)=2

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Solution for 40+v*3(5+v)=2 equation:


Simplifying
40 + v * 3(5 + v) = 2

Reorder the terms for easier multiplication:
40 + 3v(5 + v) = 2
40 + (5 * 3v + v * 3v) = 2
40 + (15v + 3v2) = 2

Solving
40 + 15v + 3v2 = 2

Solving for variable 'v'.

Reorder the terms:
40 + -2 + 15v + 3v2 = 2 + -2

Combine like terms: 40 + -2 = 38
38 + 15v + 3v2 = 2 + -2

Combine like terms: 2 + -2 = 0
38 + 15v + 3v2 = 0

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

Divide each side by '3'.
12.66666667 + 5v + v2 = 0

Move the constant term to the right:

Add '-12.66666667' to each side of the equation.
12.66666667 + 5v + -12.66666667 + v2 = 0 + -12.66666667

Reorder the terms:
12.66666667 + -12.66666667 + 5v + v2 = 0 + -12.66666667

Combine like terms: 12.66666667 + -12.66666667 = 0.00000000
0.00000000 + 5v + v2 = 0 + -12.66666667
5v + v2 = 0 + -12.66666667

Combine like terms: 0 + -12.66666667 = -12.66666667
5v + v2 = -12.66666667

The v term is 5v.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5v + 6.25 + v2 = -12.66666667 + 6.25

Reorder the terms:
6.25 + 5v + v2 = -12.66666667 + 6.25

Combine like terms: -12.66666667 + 6.25 = -6.41666667
6.25 + 5v + v2 = -6.41666667

Factor a perfect square on the left side:
(v + 2.5)(v + 2.5) = -6.41666667

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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