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)
3*a^2-(((12*a)/24)*a^2)-(18*a) = 0
(-1/2)*a^3+3*a^2-18*a = 0
3*a^2-1/2*a^3-18*a = 0
a*(3*a-1/2*a^2-18) = 0
3*a-1/2*a^2-18 = 0
DELTA = 3^2-(-18*(-1/2)*4)
DELTA = -27
DELTA < 0
a = 0
a = 0
a = 0
| 6(3x-7)+4x= | | -1/4-7/3u=-5/2 | | 1/2=-3/5v-1/3 | | AX-C+BX+D=0 | | -5+7=7 | | 5+ln(x+3)=3 | | 40y+8x=-40 | | 7x+6xy= | | X/16-4/×=0 | | AX+C+BX=-D | | 21y+3x=-21 | | X/16-4/× | | 3m-14=-26+7m | | 8x=7x^2 | | Inx-Inx^3=8 | | 5r=2n+7 | | 7*l*2x-3*l=49 | | 160=-16t^2+24t+320 | | 3t(8t-5)=0 | | 9/10x-0=-9 | | 7-10x-5-4x=4 | | 2(X+4)-9=4x-2(-1+X) | | 2x-3(x+2)+(2-x)=4(x-6)+2 | | 7(K+4)-3(2K+5)= | | 8(5x+1)=5x-9x | | 45x4y10/9x6y6 | | 3=v/7.5 | | 4x^2+9x-8100=0 | | 5s-6=6+2s | | 8z-8=7+3z | | 4x^2+9x-7056=0 | | x=5-(-7) |