v^2-9v-v+9=6

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Solution for v^2-9v-v+9=6 equation:


Simplifying
v2 + -9v + -1v + 9 = 6

Reorder the terms:
9 + -9v + -1v + v2 = 6

Combine like terms: -9v + -1v = -10v
9 + -10v + v2 = 6

Solving
9 + -10v + v2 = 6

Solving for variable 'v'.

Reorder the terms:
9 + -6 + -10v + v2 = 6 + -6

Combine like terms: 9 + -6 = 3
3 + -10v + v2 = 6 + -6

Combine like terms: 6 + -6 = 0
3 + -10v + v2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-3' to each side of the equation.
3 + -10v + -3 + v2 = 0 + -3

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

Combine like terms: 3 + -3 = 0
0 + -10v + v2 = 0 + -3
-10v + v2 = 0 + -3

Combine like terms: 0 + -3 = -3
-10v + v2 = -3

The v term is -10v.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10v + 25 + v2 = -3 + 25

Reorder the terms:
25 + -10v + v2 = -3 + 25

Combine like terms: -3 + 25 = 22
25 + -10v + v2 = 22

Factor a perfect square on the left side:
(v + -5)(v + -5) = 22

Calculate the square root of the right side: 4.69041576

Break this problem into two subproblems by setting 
(v + -5) equal to 4.69041576 and -4.69041576.

Subproblem 1

v + -5 = 4.69041576 Simplifying v + -5 = 4.69041576 Reorder the terms: -5 + v = 4.69041576 Solving -5 + v = 4.69041576 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + v = 4.69041576 + 5 Combine like terms: -5 + 5 = 0 0 + v = 4.69041576 + 5 v = 4.69041576 + 5 Combine like terms: 4.69041576 + 5 = 9.69041576 v = 9.69041576 Simplifying v = 9.69041576

Subproblem 2

v + -5 = -4.69041576 Simplifying v + -5 = -4.69041576 Reorder the terms: -5 + v = -4.69041576 Solving -5 + v = -4.69041576 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + v = -4.69041576 + 5 Combine like terms: -5 + 5 = 0 0 + v = -4.69041576 + 5 v = -4.69041576 + 5 Combine like terms: -4.69041576 + 5 = 0.30958424 v = 0.30958424 Simplifying v = 0.30958424

Solution

The solution to the problem is based on the solutions from the subproblems. v = {9.69041576, 0.30958424}

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