7v^2-21v+48=0

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Solution for 7v^2-21v+48=0 equation:


Simplifying
7v2 + -21v + 48 = 0

Reorder the terms:
48 + -21v + 7v2 = 0

Solving
48 + -21v + 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'.
6.857142857 + -3v + v2 = 0

Move the constant term to the right:

Add '-6.857142857' to each side of the equation.
6.857142857 + -3v + -6.857142857 + v2 = 0 + -6.857142857

Reorder the terms:
6.857142857 + -6.857142857 + -3v + v2 = 0 + -6.857142857

Combine like terms: 6.857142857 + -6.857142857 = 0.000000000
0.000000000 + -3v + v2 = 0 + -6.857142857
-3v + v2 = 0 + -6.857142857

Combine like terms: 0 + -6.857142857 = -6.857142857
-3v + v2 = -6.857142857

The v term is -3v.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3v + 2.25 + v2 = -6.857142857 + 2.25

Reorder the terms:
2.25 + -3v + v2 = -6.857142857 + 2.25

Combine like terms: -6.857142857 + 2.25 = -4.607142857
2.25 + -3v + v2 = -4.607142857

Factor a perfect square on the left side:
(v + -1.5)(v + -1.5) = -4.607142857

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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