4v^2=5-11v

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Solution for 4v^2=5-11v equation:


Simplifying
4v2 = 5 + -11v

Solving
4v2 = 5 + -11v

Solving for variable 'v'.

Reorder the terms:
-5 + 11v + 4v2 = 5 + -11v + -5 + 11v

Reorder the terms:
-5 + 11v + 4v2 = 5 + -5 + -11v + 11v

Combine like terms: 5 + -5 = 0
-5 + 11v + 4v2 = 0 + -11v + 11v
-5 + 11v + 4v2 = -11v + 11v

Combine like terms: -11v + 11v = 0
-5 + 11v + 4v2 = 0

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

Divide each side by '4'.
-1.25 + 2.75v + v2 = 0

Move the constant term to the right:

Add '1.25' to each side of the equation.
-1.25 + 2.75v + 1.25 + v2 = 0 + 1.25

Reorder the terms:
-1.25 + 1.25 + 2.75v + v2 = 0 + 1.25

Combine like terms: -1.25 + 1.25 = 0.00
0.00 + 2.75v + v2 = 0 + 1.25
2.75v + v2 = 0 + 1.25

Combine like terms: 0 + 1.25 = 1.25
2.75v + v2 = 1.25

The v term is 2.75v.  Take half its coefficient (1.375).
Square it (1.890625) and add it to both sides.

Add '1.890625' to each side of the equation.
2.75v + 1.890625 + v2 = 1.25 + 1.890625

Reorder the terms:
1.890625 + 2.75v + v2 = 1.25 + 1.890625

Combine like terms: 1.25 + 1.890625 = 3.140625
1.890625 + 2.75v + v2 = 3.140625

Factor a perfect square on the left side:
(v + 1.375)(v + 1.375) = 3.140625

Calculate the square root of the right side: 1.77218086

Break this problem into two subproblems by setting 
(v + 1.375) equal to 1.77218086 and -1.77218086.

Subproblem 1

v + 1.375 = 1.77218086 Simplifying v + 1.375 = 1.77218086 Reorder the terms: 1.375 + v = 1.77218086 Solving 1.375 + v = 1.77218086 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-1.375' to each side of the equation. 1.375 + -1.375 + v = 1.77218086 + -1.375 Combine like terms: 1.375 + -1.375 = 0.000 0.000 + v = 1.77218086 + -1.375 v = 1.77218086 + -1.375 Combine like terms: 1.77218086 + -1.375 = 0.39718086 v = 0.39718086 Simplifying v = 0.39718086

Subproblem 2

v + 1.375 = -1.77218086 Simplifying v + 1.375 = -1.77218086 Reorder the terms: 1.375 + v = -1.77218086 Solving 1.375 + v = -1.77218086 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-1.375' to each side of the equation. 1.375 + -1.375 + v = -1.77218086 + -1.375 Combine like terms: 1.375 + -1.375 = 0.000 0.000 + v = -1.77218086 + -1.375 v = -1.77218086 + -1.375 Combine like terms: -1.77218086 + -1.375 = -3.14718086 v = -3.14718086 Simplifying v = -3.14718086

Solution

The solution to the problem is based on the solutions from the subproblems. v = {0.39718086, -3.14718086}

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