9n^2+2+8n=0

Simple and best practice solution for 9n^2+2+8n=0 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 9n^2+2+8n=0 equation:


Simplifying
9n2 + 2 + 8n = 0

Reorder the terms:
2 + 8n + 9n2 = 0

Solving
2 + 8n + 9n2 = 0

Solving for variable 'n'.

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

Divide each side by '9'.
0.2222222222 + 0.8888888889n + n2 = 0

Move the constant term to the right:

Add '-0.2222222222' to each side of the equation.
0.2222222222 + 0.8888888889n + -0.2222222222 + n2 = 0 + -0.2222222222

Reorder the terms:
0.2222222222 + -0.2222222222 + 0.8888888889n + n2 = 0 + -0.2222222222

Combine like terms: 0.2222222222 + -0.2222222222 = 0.0000000000
0.0000000000 + 0.8888888889n + n2 = 0 + -0.2222222222
0.8888888889n + n2 = 0 + -0.2222222222

Combine like terms: 0 + -0.2222222222 = -0.2222222222
0.8888888889n + n2 = -0.2222222222

The n term is 0.8888888889n.  Take half its coefficient (0.4444444445).
Square it (0.1975308642) and add it to both sides.

Add '0.1975308642' to each side of the equation.
0.8888888889n + 0.1975308642 + n2 = -0.2222222222 + 0.1975308642

Reorder the terms:
0.1975308642 + 0.8888888889n + n2 = -0.2222222222 + 0.1975308642

Combine like terms: -0.2222222222 + 0.1975308642 = -0.024691358
0.1975308642 + 0.8888888889n + n2 = -0.024691358

Factor a perfect square on the left side:
(n + 0.4444444445)(n + 0.4444444445) = -0.024691358

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 0=-0.5x^2+1.5x+3.99 | | x+(x+6)+(x+12)+(x+18)+(x+24)+(x+30)+(x+36)=182 | | 9n^2+2=-8n | | 3r+3=23-2r | | x^2+7x-3468=0 | | x-1/15=2/5 | | -32=7X | | 72-4x=-12 | | x^2/x-4=16/x=4 | | 14-3-x=3+5x | | P-2-3=-(1+3p)-3(p-8) | | x2/x-4=16/x-4 | | 2/3xt=22 | | 5(x+3)+9+3x=20 | | x2/x-4=16/x=4 | | 26x=-17 | | 4x^2-150x+1224=0 | | x^3-18x^2+77=0 | | -a/85 | | Y=9x^2+4 | | 1/2z= | | 4/5(8-2x) | | X/14=-1/2 | | 4/5(8-2c) | | x+3=-12+8 | | 2=2-3x | | 9(m-2)=m-40 | | 17=9-6/5(y) | | 5x=22+3 | | 3(4x+8)=12(6x-3)+2 | | -(12x-6)=12+6 | | 1+3v+10= |

Equations solver categories