10v^2-39v+10=0

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Solution for 10v^2-39v+10=0 equation:


Simplifying
10v2 + -39v + 10 = 0

Reorder the terms:
10 + -39v + 10v2 = 0

Solving
10 + -39v + 10v2 = 0

Solving for variable 'v'.

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

Divide each side by '10'.
1 + -3.9v + v2 = 0

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + -3.9v + -1 + v2 = 0 + -1

Reorder the terms:
1 + -1 + -3.9v + v2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -3.9v + v2 = 0 + -1
-3.9v + v2 = 0 + -1

Combine like terms: 0 + -1 = -1
-3.9v + v2 = -1

The v term is -3.9v.  Take half its coefficient (-1.95).
Square it (3.8025) and add it to both sides.

Add '3.8025' to each side of the equation.
-3.9v + 3.8025 + v2 = -1 + 3.8025

Reorder the terms:
3.8025 + -3.9v + v2 = -1 + 3.8025

Combine like terms: -1 + 3.8025 = 2.8025
3.8025 + -3.9v + v2 = 2.8025

Factor a perfect square on the left side:
(v + -1.95)(v + -1.95) = 2.8025

Calculate the square root of the right side: 1.674066904

Break this problem into two subproblems by setting 
(v + -1.95) equal to 1.674066904 and -1.674066904.

Subproblem 1

v + -1.95 = 1.674066904 Simplifying v + -1.95 = 1.674066904 Reorder the terms: -1.95 + v = 1.674066904 Solving -1.95 + v = 1.674066904 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '1.95' to each side of the equation. -1.95 + 1.95 + v = 1.674066904 + 1.95 Combine like terms: -1.95 + 1.95 = 0.00 0.00 + v = 1.674066904 + 1.95 v = 1.674066904 + 1.95 Combine like terms: 1.674066904 + 1.95 = 3.624066904 v = 3.624066904 Simplifying v = 3.624066904

Subproblem 2

v + -1.95 = -1.674066904 Simplifying v + -1.95 = -1.674066904 Reorder the terms: -1.95 + v = -1.674066904 Solving -1.95 + v = -1.674066904 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '1.95' to each side of the equation. -1.95 + 1.95 + v = -1.674066904 + 1.95 Combine like terms: -1.95 + 1.95 = 0.00 0.00 + v = -1.674066904 + 1.95 v = -1.674066904 + 1.95 Combine like terms: -1.674066904 + 1.95 = 0.275933096 v = 0.275933096 Simplifying v = 0.275933096

Solution

The solution to the problem is based on the solutions from the subproblems. v = {3.624066904, 0.275933096}

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