v^2-27v=16

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Solution for v^2-27v=16 equation:


Simplifying
v2 + -27v = 16

Reorder the terms:
-27v + v2 = 16

Solving
-27v + v2 = 16

Solving for variable 'v'.

Reorder the terms:
-16 + -27v + v2 = 16 + -16

Combine like terms: 16 + -16 = 0
-16 + -27v + v2 = 0

Begin completing the square.

Move the constant term to the right:

Add '16' to each side of the equation.
-16 + -27v + 16 + v2 = 0 + 16

Reorder the terms:
-16 + 16 + -27v + v2 = 0 + 16

Combine like terms: -16 + 16 = 0
0 + -27v + v2 = 0 + 16
-27v + v2 = 0 + 16

Combine like terms: 0 + 16 = 16
-27v + v2 = 16

The v term is -27v.  Take half its coefficient (-13.5).
Square it (182.25) and add it to both sides.

Add '182.25' to each side of the equation.
-27v + 182.25 + v2 = 16 + 182.25

Reorder the terms:
182.25 + -27v + v2 = 16 + 182.25

Combine like terms: 16 + 182.25 = 198.25
182.25 + -27v + v2 = 198.25

Factor a perfect square on the left side:
(v + -13.5)(v + -13.5) = 198.25

Calculate the square root of the right side: 14.08012784

Break this problem into two subproblems by setting 
(v + -13.5) equal to 14.08012784 and -14.08012784.

Subproblem 1

v + -13.5 = 14.08012784 Simplifying v + -13.5 = 14.08012784 Reorder the terms: -13.5 + v = 14.08012784 Solving -13.5 + v = 14.08012784 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '13.5' to each side of the equation. -13.5 + 13.5 + v = 14.08012784 + 13.5 Combine like terms: -13.5 + 13.5 = 0.0 0.0 + v = 14.08012784 + 13.5 v = 14.08012784 + 13.5 Combine like terms: 14.08012784 + 13.5 = 27.58012784 v = 27.58012784 Simplifying v = 27.58012784

Subproblem 2

v + -13.5 = -14.08012784 Simplifying v + -13.5 = -14.08012784 Reorder the terms: -13.5 + v = -14.08012784 Solving -13.5 + v = -14.08012784 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '13.5' to each side of the equation. -13.5 + 13.5 + v = -14.08012784 + 13.5 Combine like terms: -13.5 + 13.5 = 0.0 0.0 + v = -14.08012784 + 13.5 v = -14.08012784 + 13.5 Combine like terms: -14.08012784 + 13.5 = -0.58012784 v = -0.58012784 Simplifying v = -0.58012784

Solution

The solution to the problem is based on the solutions from the subproblems. v = {27.58012784, -0.58012784}

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