v^2-16v-8=0

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Solution for v^2-16v-8=0 equation:


Simplifying
v2 + -16v + -8 = 0

Reorder the terms:
-8 + -16v + v2 = 0

Solving
-8 + -16v + v2 = 0

Solving for variable 'v'.

Begin completing the square.

Move the constant term to the right:

Add '8' to each side of the equation.
-8 + -16v + 8 + v2 = 0 + 8

Reorder the terms:
-8 + 8 + -16v + v2 = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -16v + v2 = 0 + 8
-16v + v2 = 0 + 8

Combine like terms: 0 + 8 = 8
-16v + v2 = 8

The v term is -16v.  Take half its coefficient (-8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
-16v + 64 + v2 = 8 + 64

Reorder the terms:
64 + -16v + v2 = 8 + 64

Combine like terms: 8 + 64 = 72
64 + -16v + v2 = 72

Factor a perfect square on the left side:
(v + -8)(v + -8) = 72

Calculate the square root of the right side: 8.485281374

Break this problem into two subproblems by setting 
(v + -8) equal to 8.485281374 and -8.485281374.

Subproblem 1

v + -8 = 8.485281374 Simplifying v + -8 = 8.485281374 Reorder the terms: -8 + v = 8.485281374 Solving -8 + v = 8.485281374 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + v = 8.485281374 + 8 Combine like terms: -8 + 8 = 0 0 + v = 8.485281374 + 8 v = 8.485281374 + 8 Combine like terms: 8.485281374 + 8 = 16.485281374 v = 16.485281374 Simplifying v = 16.485281374

Subproblem 2

v + -8 = -8.485281374 Simplifying v + -8 = -8.485281374 Reorder the terms: -8 + v = -8.485281374 Solving -8 + v = -8.485281374 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + v = -8.485281374 + 8 Combine like terms: -8 + 8 = 0 0 + v = -8.485281374 + 8 v = -8.485281374 + 8 Combine like terms: -8.485281374 + 8 = -0.485281374 v = -0.485281374 Simplifying v = -0.485281374

Solution

The solution to the problem is based on the solutions from the subproblems. v = {16.485281374, -0.485281374}

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