-2r^2=18

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


Simplifying
-2r2 = 18

Solving
-2r2 = 18

Solving for variable 'r'.

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

Divide each side by '-2'.
r2 = -9

Simplifying
r2 = -9

Reorder the terms:
9 + r2 = -9 + 9

Combine like terms: -9 + 9 = 0
9 + r2 = 0

The solution to this equation could not be determined.

See similar equations:

| (x-5)(x+3)=105 | | 79589x=-1.2745y | | 3x-4=-38 | | x=7958.823529+-1.274509804y | | 4y+-11=21 | | 0=6-0.5p | | 8x^3-5x^2-16x+10=0 | | 3(z+1)=2(z-5)+z | | 7n^3-21n^2-5n+15=0 | | (s^2-t^2)(s^2+t^2)= | | 6(x-2)=3(2x+1) | | 51x+65y=405900 | | 51x+65y=62446 | | 7x-8=x-6 | | 3(2x-5)+10=6x-5 | | 7*0=0 | | (4x^2+5)(x-4)= | | 0=2.4x^2-24x+60 | | 3[x+3]=16+2x | | 0=2.4x^2-24+60 | | x^3-5x^2+11x-28=0 | | d=.5(9.8)(2.5)+(5)(2.5) | | b^4-4b^3+27b+120=0 | | 720y-360x=0 | | 3(m)=12 | | .9(x+40)+.3x=72 | | 720y-360=0 | | Y=30-2 | | (6x+2)x^2= | | -u+57=25 | | -8n+13=-7n-3 | | 360x-360=0 |

Equations solver categories