v(2v-23)=-19

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Solution for v(2v-23)=-19 equation:


Simplifying
v(2v + -23) = -19

Reorder the terms:
v(-23 + 2v) = -19
(-23 * v + 2v * v) = -19
(-23v + 2v2) = -19

Solving
-23v + 2v2 = -19

Solving for variable 'v'.

Reorder the terms:
19 + -23v + 2v2 = -19 + 19

Combine like terms: -19 + 19 = 0
19 + -23v + 2v2 = 0

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

Divide each side by '2'.
9.5 + -11.5v + v2 = 0

Move the constant term to the right:

Add '-9.5' to each side of the equation.
9.5 + -11.5v + -9.5 + v2 = 0 + -9.5

Reorder the terms:
9.5 + -9.5 + -11.5v + v2 = 0 + -9.5

Combine like terms: 9.5 + -9.5 = 0.0
0.0 + -11.5v + v2 = 0 + -9.5
-11.5v + v2 = 0 + -9.5

Combine like terms: 0 + -9.5 = -9.5
-11.5v + v2 = -9.5

The v term is -11.5v.  Take half its coefficient (-5.75).
Square it (33.0625) and add it to both sides.

Add '33.0625' to each side of the equation.
-11.5v + 33.0625 + v2 = -9.5 + 33.0625

Reorder the terms:
33.0625 + -11.5v + v2 = -9.5 + 33.0625

Combine like terms: -9.5 + 33.0625 = 23.5625
33.0625 + -11.5v + v2 = 23.5625

Factor a perfect square on the left side:
(v + -5.75)(v + -5.75) = 23.5625

Calculate the square root of the right side: 4.85412196

Break this problem into two subproblems by setting 
(v + -5.75) equal to 4.85412196 and -4.85412196.

Subproblem 1

v + -5.75 = 4.85412196 Simplifying v + -5.75 = 4.85412196 Reorder the terms: -5.75 + v = 4.85412196 Solving -5.75 + v = 4.85412196 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '5.75' to each side of the equation. -5.75 + 5.75 + v = 4.85412196 + 5.75 Combine like terms: -5.75 + 5.75 = 0.00 0.00 + v = 4.85412196 + 5.75 v = 4.85412196 + 5.75 Combine like terms: 4.85412196 + 5.75 = 10.60412196 v = 10.60412196 Simplifying v = 10.60412196

Subproblem 2

v + -5.75 = -4.85412196 Simplifying v + -5.75 = -4.85412196 Reorder the terms: -5.75 + v = -4.85412196 Solving -5.75 + v = -4.85412196 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '5.75' to each side of the equation. -5.75 + 5.75 + v = -4.85412196 + 5.75 Combine like terms: -5.75 + 5.75 = 0.00 0.00 + v = -4.85412196 + 5.75 v = -4.85412196 + 5.75 Combine like terms: -4.85412196 + 5.75 = 0.89587804 v = 0.89587804 Simplifying v = 0.89587804

Solution

The solution to the problem is based on the solutions from the subproblems. v = {10.60412196, 0.89587804}

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