2n^2-18=

Simple and best practice solution for 2n^2-18= 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 2n^2-18= equation: 


Simplifying
2n2 + -18 = 0

Reorder the terms:
-18 + 2n2 = 0

Solving
-18 + 2n2 = 0

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '18' to each side of the equation.
-18 + 18 + 2n2 = 0 + 18

Combine like terms: -18 + 18 = 0
0 + 2n2 = 0 + 18
2n2 = 0 + 18

Combine like terms: 0 + 18 = 18
2n2 = 18

Divide each side by '2'.
n2 = 9

Simplifying
n2 = 9

Take the square root of each side:
n = {-3, 3}

See similar equations:

| 41nx+82n=8 | | 41n(x+2)=8 | | 2n^2+18= | | x^2-7v+6=0 | | (x+4)x=96 | | (x+4)y=96 | | 11=x+2x+8 | | x+3+6x=10 | | 7x+10+5x=106 | | (X*6)+(60-(X*0.5))=120 | | 4x^2+12x-40= | | v^2-11vw+30w^2= | | 2x-40=15 | | 7y-1x=5 | | x(2-5)=x(5-6) | | (x+10)(x-7)-(x+1)(x+3)=2 | | 7x+9+2x=117 | | 5x+23=10x-3 | | 5x+7+5x=117 | | 42=2y-z | | 41=2y-z | | (x-8)(x+14)+1=(x+3)(x+2) | | 3(x+7)=33 | | z^2-12+27=0 | | 2u-6=-20 | | 5v^3+6v^2+25v+30=0 | | 25-3(x)=29 | | -y^2+y+1=0 | | 25-3x=29 | | t^2-30t-30=0 | | 21-x-4= | | 4x^5-28x^4+49x^3=0 |

Equations solver categories