4v^2-2v=3

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Solution for 4v^2-2v=3 equation:


Simplifying
4v2 + -2v = 3

Reorder the terms:
-2v + 4v2 = 3

Solving
-2v + 4v2 = 3

Solving for variable 'v'.

Reorder the terms:
-3 + -2v + 4v2 = 3 + -3

Combine like terms: 3 + -3 = 0
-3 + -2v + 4v2 = 0

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

Divide each side by '4'.
-0.75 + -0.5v + v2 = 0

Move the constant term to the right:

Add '0.75' to each side of the equation.
-0.75 + -0.5v + 0.75 + v2 = 0 + 0.75

Reorder the terms:
-0.75 + 0.75 + -0.5v + v2 = 0 + 0.75

Combine like terms: -0.75 + 0.75 = 0.00
0.00 + -0.5v + v2 = 0 + 0.75
-0.5v + v2 = 0 + 0.75

Combine like terms: 0 + 0.75 = 0.75
-0.5v + v2 = 0.75

The v term is -0.5v.  Take half its coefficient (-0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
-0.5v + 0.0625 + v2 = 0.75 + 0.0625

Reorder the terms:
0.0625 + -0.5v + v2 = 0.75 + 0.0625

Combine like terms: 0.75 + 0.0625 = 0.8125
0.0625 + -0.5v + v2 = 0.8125

Factor a perfect square on the left side:
(v + -0.25)(v + -0.25) = 0.8125

Calculate the square root of the right side: 0.901387819

Break this problem into two subproblems by setting 
(v + -0.25) equal to 0.901387819 and -0.901387819.

Subproblem 1

v + -0.25 = 0.901387819 Simplifying v + -0.25 = 0.901387819 Reorder the terms: -0.25 + v = 0.901387819 Solving -0.25 + v = 0.901387819 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + v = 0.901387819 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + v = 0.901387819 + 0.25 v = 0.901387819 + 0.25 Combine like terms: 0.901387819 + 0.25 = 1.151387819 v = 1.151387819 Simplifying v = 1.151387819

Subproblem 2

v + -0.25 = -0.901387819 Simplifying v + -0.25 = -0.901387819 Reorder the terms: -0.25 + v = -0.901387819 Solving -0.25 + v = -0.901387819 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + v = -0.901387819 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + v = -0.901387819 + 0.25 v = -0.901387819 + 0.25 Combine like terms: -0.901387819 + 0.25 = -0.651387819 v = -0.651387819 Simplifying v = -0.651387819

Solution

The solution to the problem is based on the solutions from the subproblems. v = {1.151387819, -0.651387819}

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