If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a in (-oo:+oo)
a*((18*a^3+30*a^2)/3) = 0
(a*(18*a^3+30*a^2))/3 = 0
18*a^3+30*a^2 = 0
6*a^2*(3*a+5) = 0
3*a+5 = 0 // - 5
3*a = -5 // : 3
a = -5/3
6*a^2*(a+5/3) = 0
(6*a*a^2*(a+5/3))/3 = 0
( 6*a^2 )
6*a^2 = 0 // : 6
a^2 = 0
a = 0
( a+5/3 )
a+5/3 = 0 // - 5/3
a = -5/3
( a )
a = 0
a in { 0, -5/3, 0 }
| 4(-3-3x)=108 | | .8x-.83x+1.16+.2=1 | | 2x+10=3.25 | | .8x-.8x+1.16+.2=1 | | (7x+4)-10x=5(3x-5) | | 172-2x=25x+16 | | (28+6i)/(2-i) | | X^2+29x=750 | | 4-x-10-2=4 | | -17-11=X | | x^2+26x=750 | | 3x-40+x=180 | | 5x+11=8x-78 | | 6-(-2)=X | | -5y=-5 | | y=0.3(22.5)+7 | | -5(-2x-1)=-55 | | -20-20=x | | 19x+13=-6 | | 4(a-8)+12=2(a-6) | | 4/-2=0 | | 11.2=0.3+7 | | 25x-75x=60 | | 5(-2x+4)=-90 | | y=0.3(11.2)+7 | | 3x=2(x-12) | | (3/(x-5))+2=(1/(x-5)) | | 2x^2+3y^2-4x-45y+36=0 | | -3x+6x-13=2 | | (1/(x-6))+2=(4/(x-6)) | | (1/x-6)+2=(4/x-6) | | 8-7k-7=15 |