8v-11=v^2-2v-4v+8

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Solution for 8v-11=v^2-2v-4v+8 equation:


Simplifying
8v + -11 = v2 + -2v + -4v + 8

Reorder the terms:
-11 + 8v = v2 + -2v + -4v + 8

Reorder the terms:
-11 + 8v = 8 + -2v + -4v + v2

Combine like terms: -2v + -4v = -6v
-11 + 8v = 8 + -6v + v2

Solving
-11 + 8v = 8 + -6v + v2

Solving for variable 'v'.

Reorder the terms:
-11 + -8 + 8v + 6v + -1v2 = 8 + -6v + v2 + -8 + 6v + -1v2

Combine like terms: -11 + -8 = -19
-19 + 8v + 6v + -1v2 = 8 + -6v + v2 + -8 + 6v + -1v2

Combine like terms: 8v + 6v = 14v
-19 + 14v + -1v2 = 8 + -6v + v2 + -8 + 6v + -1v2

Reorder the terms:
-19 + 14v + -1v2 = 8 + -8 + -6v + 6v + v2 + -1v2

Combine like terms: 8 + -8 = 0
-19 + 14v + -1v2 = 0 + -6v + 6v + v2 + -1v2
-19 + 14v + -1v2 = -6v + 6v + v2 + -1v2

Combine like terms: -6v + 6v = 0
-19 + 14v + -1v2 = 0 + v2 + -1v2
-19 + 14v + -1v2 = v2 + -1v2

Combine like terms: v2 + -1v2 = 0
-19 + 14v + -1v2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
19 + -14v + v2 = 0

Move the constant term to the right:

Add '-19' to each side of the equation.
19 + -14v + -19 + v2 = 0 + -19

Reorder the terms:
19 + -19 + -14v + v2 = 0 + -19

Combine like terms: 19 + -19 = 0
0 + -14v + v2 = 0 + -19
-14v + v2 = 0 + -19

Combine like terms: 0 + -19 = -19
-14v + v2 = -19

The v term is -14v.  Take half its coefficient (-7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
-14v + 49 + v2 = -19 + 49

Reorder the terms:
49 + -14v + v2 = -19 + 49

Combine like terms: -19 + 49 = 30
49 + -14v + v2 = 30

Factor a perfect square on the left side:
(v + -7)(v + -7) = 30

Calculate the square root of the right side: 5.477225575

Break this problem into two subproblems by setting 
(v + -7) equal to 5.477225575 and -5.477225575.

Subproblem 1

v + -7 = 5.477225575 Simplifying v + -7 = 5.477225575 Reorder the terms: -7 + v = 5.477225575 Solving -7 + v = 5.477225575 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + v = 5.477225575 + 7 Combine like terms: -7 + 7 = 0 0 + v = 5.477225575 + 7 v = 5.477225575 + 7 Combine like terms: 5.477225575 + 7 = 12.477225575 v = 12.477225575 Simplifying v = 12.477225575

Subproblem 2

v + -7 = -5.477225575 Simplifying v + -7 = -5.477225575 Reorder the terms: -7 + v = -5.477225575 Solving -7 + v = -5.477225575 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + v = -5.477225575 + 7 Combine like terms: -7 + 7 = 0 0 + v = -5.477225575 + 7 v = -5.477225575 + 7 Combine like terms: -5.477225575 + 7 = 1.522774425 v = 1.522774425 Simplifying v = 1.522774425

Solution

The solution to the problem is based on the solutions from the subproblems. v = {12.477225575, 1.522774425}

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