16v^2+2v-15=0

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Solution for 16v^2+2v-15=0 equation:


Simplifying
16v2 + 2v + -15 = 0

Reorder the terms:
-15 + 2v + 16v2 = 0

Solving
-15 + 2v + 16v2 = 0

Solving for variable 'v'.

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

Divide each side by '16'.
-0.9375 + 0.125v + v2 = 0

Move the constant term to the right:

Add '0.9375' to each side of the equation.
-0.9375 + 0.125v + 0.9375 + v2 = 0 + 0.9375

Reorder the terms:
-0.9375 + 0.9375 + 0.125v + v2 = 0 + 0.9375

Combine like terms: -0.9375 + 0.9375 = 0.0000
0.0000 + 0.125v + v2 = 0 + 0.9375
0.125v + v2 = 0 + 0.9375

Combine like terms: 0 + 0.9375 = 0.9375
0.125v + v2 = 0.9375

The v term is 0.125v.  Take half its coefficient (0.0625).
Square it (0.00390625) and add it to both sides.

Add '0.00390625' to each side of the equation.
0.125v + 0.00390625 + v2 = 0.9375 + 0.00390625

Reorder the terms:
0.00390625 + 0.125v + v2 = 0.9375 + 0.00390625

Combine like terms: 0.9375 + 0.00390625 = 0.94140625
0.00390625 + 0.125v + v2 = 0.94140625

Factor a perfect square on the left side:
(v + 0.0625)(v + 0.0625) = 0.94140625

Calculate the square root of the right side: 0.970260919

Break this problem into two subproblems by setting 
(v + 0.0625) equal to 0.970260919 and -0.970260919.

Subproblem 1

v + 0.0625 = 0.970260919 Simplifying v + 0.0625 = 0.970260919 Reorder the terms: 0.0625 + v = 0.970260919 Solving 0.0625 + v = 0.970260919 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-0.0625' to each side of the equation. 0.0625 + -0.0625 + v = 0.970260919 + -0.0625 Combine like terms: 0.0625 + -0.0625 = 0.0000 0.0000 + v = 0.970260919 + -0.0625 v = 0.970260919 + -0.0625 Combine like terms: 0.970260919 + -0.0625 = 0.907760919 v = 0.907760919 Simplifying v = 0.907760919

Subproblem 2

v + 0.0625 = -0.970260919 Simplifying v + 0.0625 = -0.970260919 Reorder the terms: 0.0625 + v = -0.970260919 Solving 0.0625 + v = -0.970260919 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-0.0625' to each side of the equation. 0.0625 + -0.0625 + v = -0.970260919 + -0.0625 Combine like terms: 0.0625 + -0.0625 = 0.0000 0.0000 + v = -0.970260919 + -0.0625 v = -0.970260919 + -0.0625 Combine like terms: -0.970260919 + -0.0625 = -1.032760919 v = -1.032760919 Simplifying v = -1.032760919

Solution

The solution to the problem is based on the solutions from the subproblems. v = {0.907760919, -1.032760919}

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