v^2=8-6v

Simple and best practice solution for v^2=8-6v equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for v^2=8-6v equation:


Simplifying
v2 = 8 + -6v

Solving
v2 = 8 + -6v

Solving for variable 'v'.

Reorder the terms:
-8 + 6v + v2 = 8 + -6v + -8 + 6v

Reorder the terms:
-8 + 6v + v2 = 8 + -8 + -6v + 6v

Combine like terms: 8 + -8 = 0
-8 + 6v + v2 = 0 + -6v + 6v
-8 + 6v + v2 = -6v + 6v

Combine like terms: -6v + 6v = 0
-8 + 6v + v2 = 0

Begin completing the square.

Move the constant term to the right:

Add '8' to each side of the equation.
-8 + 6v + 8 + v2 = 0 + 8

Reorder the terms:
-8 + 8 + 6v + v2 = 0 + 8

Combine like terms: -8 + 8 = 0
0 + 6v + v2 = 0 + 8
6v + v2 = 0 + 8

Combine like terms: 0 + 8 = 8
6v + v2 = 8

The v term is 6v.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6v + 9 + v2 = 8 + 9

Reorder the terms:
9 + 6v + v2 = 8 + 9

Combine like terms: 8 + 9 = 17
9 + 6v + v2 = 17

Factor a perfect square on the left side:
(v + 3)(v + 3) = 17

Calculate the square root of the right side: 4.123105626

Break this problem into two subproblems by setting 
(v + 3) equal to 4.123105626 and -4.123105626.

Subproblem 1

v + 3 = 4.123105626 Simplifying v + 3 = 4.123105626 Reorder the terms: 3 + v = 4.123105626 Solving 3 + v = 4.123105626 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + v = 4.123105626 + -3 Combine like terms: 3 + -3 = 0 0 + v = 4.123105626 + -3 v = 4.123105626 + -3 Combine like terms: 4.123105626 + -3 = 1.123105626 v = 1.123105626 Simplifying v = 1.123105626

Subproblem 2

v + 3 = -4.123105626 Simplifying v + 3 = -4.123105626 Reorder the terms: 3 + v = -4.123105626 Solving 3 + v = -4.123105626 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + v = -4.123105626 + -3 Combine like terms: 3 + -3 = 0 0 + v = -4.123105626 + -3 v = -4.123105626 + -3 Combine like terms: -4.123105626 + -3 = -7.123105626 v = -7.123105626 Simplifying v = -7.123105626

Solution

The solution to the problem is based on the solutions from the subproblems. v = {1.123105626, -7.123105626}

See similar equations:

| 224.25+25s=425.50 | | =x^3-216 | | 2(x+4)+8=32 | | ln(x-1)+ln(x-2)=1 | | y=3x^2+9x-1 | | -1.3p+0.4=-1.16 | | 13x-(5-2x)=5(3x-1) | | 2+3u+1=4u+3 | | M+2m+7=3m+6 | | 15f+6n-8f= | | 4x^2+8x=96 | | y+2=4x | | 8x+12=3x+11 | | y=0.5(-2)-3 | | 5x^4+2x^2-8=0 | | 2x+2y-4=0 | | 4x+5=-2x-11 | | 13-0.7(w-9)=0.5(12w-9) | | =12x^3-52x^2-40x | | -4=8e-9e+6 | | -x+3=-x-2 | | N^2-2n-99=0 | | =4v^2+4v-15 | | 5x-15=4x-15 | | -2.5t+6.7=-1.3 | | 3p+9=15p | | 2x-7x-8=-5x+3-8 | | -y-x=2 | | 10t^3=90t | | 40+14x=-2(4x+13) | | 4x-3=4(x-8) | | 3r^2+18r=21 |

Equations solver categories