-2v+2=9v^2

Simple and best practice solution for -2v+2=9v^2 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 -2v+2=9v^2 equation:


Simplifying
-2v + 2 = 9v2

Reorder the terms:
2 + -2v = 9v2

Solving
2 + -2v = 9v2

Solving for variable 'v'.

Combine like terms: 9v2 + -9v2 = 0
2 + -2v + -9v2 = 0

Begin completing the square.  Divide all terms by
-9 the coefficient of the squared term: 

Divide each side by '-9'.
-0.2222222222 + 0.2222222222v + v2 = 0

Move the constant term to the right:

Add '0.2222222222' to each side of the equation.
-0.2222222222 + 0.2222222222v + 0.2222222222 + v2 = 0 + 0.2222222222

Reorder the terms:
-0.2222222222 + 0.2222222222 + 0.2222222222v + v2 = 0 + 0.2222222222

Combine like terms: -0.2222222222 + 0.2222222222 = 0.0000000000
0.0000000000 + 0.2222222222v + v2 = 0 + 0.2222222222
0.2222222222v + v2 = 0 + 0.2222222222

Combine like terms: 0 + 0.2222222222 = 0.2222222222
0.2222222222v + v2 = 0.2222222222

The v term is 0.2222222222v.  Take half its coefficient (0.1111111111).
Square it (0.01234567901) and add it to both sides.

Add '0.01234567901' to each side of the equation.
0.2222222222v + 0.01234567901 + v2 = 0.2222222222 + 0.01234567901

Reorder the terms:
0.01234567901 + 0.2222222222v + v2 = 0.2222222222 + 0.01234567901

Combine like terms: 0.2222222222 + 0.01234567901 = 0.23456790121
0.01234567901 + 0.2222222222v + v2 = 0.23456790121

Factor a perfect square on the left side:
(v + 0.1111111111)(v + 0.1111111111) = 0.23456790121

Calculate the square root of the right side: 0.484322105

Break this problem into two subproblems by setting 
(v + 0.1111111111) equal to 0.484322105 and -0.484322105.

Subproblem 1

v + 0.1111111111 = 0.484322105 Simplifying v + 0.1111111111 = 0.484322105 Reorder the terms: 0.1111111111 + v = 0.484322105 Solving 0.1111111111 + v = 0.484322105 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-0.1111111111' to each side of the equation. 0.1111111111 + -0.1111111111 + v = 0.484322105 + -0.1111111111 Combine like terms: 0.1111111111 + -0.1111111111 = 0.0000000000 0.0000000000 + v = 0.484322105 + -0.1111111111 v = 0.484322105 + -0.1111111111 Combine like terms: 0.484322105 + -0.1111111111 = 0.3732109939 v = 0.3732109939 Simplifying v = 0.3732109939

Subproblem 2

v + 0.1111111111 = -0.484322105 Simplifying v + 0.1111111111 = -0.484322105 Reorder the terms: 0.1111111111 + v = -0.484322105 Solving 0.1111111111 + v = -0.484322105 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-0.1111111111' to each side of the equation. 0.1111111111 + -0.1111111111 + v = -0.484322105 + -0.1111111111 Combine like terms: 0.1111111111 + -0.1111111111 = 0.0000000000 0.0000000000 + v = -0.484322105 + -0.1111111111 v = -0.484322105 + -0.1111111111 Combine like terms: -0.484322105 + -0.1111111111 = -0.5954332161 v = -0.5954332161 Simplifying v = -0.5954332161

Solution

The solution to the problem is based on the solutions from the subproblems. v = {0.3732109939, -0.5954332161}

See similar equations:

| 9(-3d+7)= | | kp^2+zp+d=0 | | 2(-3-8m)=-134 | | -5+6x=85 | | -10x=-9x+3 | | 4=b | | (3g+1)(-5)= | | 39+(2v-13)+(v+5)=180 | | 6(1+4m)= | | (4^6/4^x) | | y=3r^4-5r^2-8 | | 3y+7+16+4y+3y+6y= | | -3(1-4x)+7=-92 | | 2n^2+18n+36=0 | | (z-35)+30+(z-47)=180 | | 640+50x=450+25x | | 6x-9x+6=x-3+9 | | 3+2(x+5)= | | 64+2t+(t-13)=180 | | (x-4)*(x+17)=0 | | 9x-3=7x-3 | | (x^2-9)/(x^2-4)=0 | | Y=-0.03x^2+0.75x+9 | | 3x+60=285 | | (x-4)(x+17)=0 | | 7+6(4n+3)=121 | | 3x+9+4x=2x-3 | | 2(7t+4)= | | 3(4t+1)= | | -8d^2+5d+9=0 | | -7=-3-8x | | x/8-3x/4=6 |

Equations solver categories