v^2+10v+2=0

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Solution for v^2+10v+2=0 equation:


Simplifying
v2 + 10v + 2 = 0

Reorder the terms:
2 + 10v + v2 = 0

Solving
2 + 10v + v2 = 0

Solving for variable 'v'.

Begin completing the square.

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + 10v + -2 + v2 = 0 + -2

Reorder the terms:
2 + -2 + 10v + v2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + 10v + v2 = 0 + -2
10v + v2 = 0 + -2

Combine like terms: 0 + -2 = -2
10v + v2 = -2

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 = -2 + 25

Reorder the terms:
25 + 10v + v2 = -2 + 25

Combine like terms: -2 + 25 = 23
25 + 10v + v2 = 23

Factor a perfect square on the left side:
(v + 5)(v + 5) = 23

Calculate the square root of the right side: 4.795831523

Break this problem into two subproblems by setting 
(v + 5) equal to 4.795831523 and -4.795831523.

Subproblem 1

v + 5 = 4.795831523 Simplifying v + 5 = 4.795831523 Reorder the terms: 5 + v = 4.795831523 Solving 5 + v = 4.795831523 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 = 4.795831523 + -5 Combine like terms: 5 + -5 = 0 0 + v = 4.795831523 + -5 v = 4.795831523 + -5 Combine like terms: 4.795831523 + -5 = -0.204168477 v = -0.204168477 Simplifying v = -0.204168477

Subproblem 2

v + 5 = -4.795831523 Simplifying v + 5 = -4.795831523 Reorder the terms: 5 + v = -4.795831523 Solving 5 + v = -4.795831523 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 = -4.795831523 + -5 Combine like terms: 5 + -5 = 0 0 + v = -4.795831523 + -5 v = -4.795831523 + -5 Combine like terms: -4.795831523 + -5 = -9.795831523 v = -9.795831523 Simplifying v = -9.795831523

Solution

The solution to the problem is based on the solutions from the subproblems. v = {-0.204168477, -9.795831523}

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