3v^2-3v-10=0

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Solution for 3v^2-3v-10=0 equation:


Simplifying
3v2 + -3v + -10 = 0

Reorder the terms:
-10 + -3v + 3v2 = 0

Solving
-10 + -3v + 3v2 = 0

Solving for variable 'v'.

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

Divide each side by '3'.
-3.333333333 + -1v + v2 = 0

Move the constant term to the right:

Add '3.333333333' to each side of the equation.
-3.333333333 + -1v + 3.333333333 + v2 = 0 + 3.333333333

Reorder the terms:
-3.333333333 + 3.333333333 + -1v + v2 = 0 + 3.333333333

Combine like terms: -3.333333333 + 3.333333333 = 0.000000000
0.000000000 + -1v + v2 = 0 + 3.333333333
-1v + v2 = 0 + 3.333333333

Combine like terms: 0 + 3.333333333 = 3.333333333
-1v + v2 = 3.333333333

The v term is -1v.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1v + 0.25 + v2 = 3.333333333 + 0.25

Reorder the terms:
0.25 + -1v + v2 = 3.333333333 + 0.25

Combine like terms: 3.333333333 + 0.25 = 3.583333333
0.25 + -1v + v2 = 3.583333333

Factor a perfect square on the left side:
(v + -0.5)(v + -0.5) = 3.583333333

Calculate the square root of the right side: 1.892969449

Break this problem into two subproblems by setting 
(v + -0.5) equal to 1.892969449 and -1.892969449.

Subproblem 1

v + -0.5 = 1.892969449 Simplifying v + -0.5 = 1.892969449 Reorder the terms: -0.5 + v = 1.892969449 Solving -0.5 + v = 1.892969449 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + v = 1.892969449 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + v = 1.892969449 + 0.5 v = 1.892969449 + 0.5 Combine like terms: 1.892969449 + 0.5 = 2.392969449 v = 2.392969449 Simplifying v = 2.392969449

Subproblem 2

v + -0.5 = -1.892969449 Simplifying v + -0.5 = -1.892969449 Reorder the terms: -0.5 + v = -1.892969449 Solving -0.5 + v = -1.892969449 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + v = -1.892969449 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + v = -1.892969449 + 0.5 v = -1.892969449 + 0.5 Combine like terms: -1.892969449 + 0.5 = -1.392969449 v = -1.392969449 Simplifying v = -1.392969449

Solution

The solution to the problem is based on the solutions from the subproblems. v = {2.392969449, -1.392969449}

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