If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
3*4*x-(x*((2*8*x*x)/2)) = 0
3*4*x-8*x^3 = 0
12*x-8*x^3 = 0
4*x*(3-2*x^2) = 0
-2*x^2 = -3 // : -2
x^2 = 3/2
x^2 = 3/2 // ^ 1/2
abs(x) = (3/2)^(1/2)
x = (3/2)^(1/2) or x = -(3/2)^(1/2)
4*x = 0
4*x = 0 // : 4
x = 0
x in { (3/2)^(1/2), -(3/2)^(1/2), 0 }
| 14d+9=7d+72 | | 9(x-9)=3.6 | | 6(a+5)=43.2 | | 5(2x-1)+3(2x+5)= | | 15.2=4c-8 | | 5e-8=33 | | log_(x)((5)/((7)))=-(1)/(3) | | 4(a+9)=48 | | kx^2-10x+1=0 | | 5x^3-5x^2-2x-12=0 | | 100x-5y=30 | | 3(4x+5)+2(3x-4)= | | 100x-30=5y | | 1y-31+4=5 | | 312x+11=9 | | 1c-21+3=15 | | 3x+7(4x+8)=-6 | | 3(2q+2)=4(2q+1) | | 2y-6=5y+8 | | f(x)=ln(2+lnx) | | 5m+1=4m+5 | | (X-5)2=10 | | 4x(x+4)=9-16x | | 2x*2y=210 | | 6q-1=4q+3 | | x+1/x+2-x+2/x+5=4 | | 3(3h-1)=3(4h-2) | | 7b=3b-(b+45) | | 5x-y+3(x+1)=-7 | | X+3(2y-1)=1 | | 4/25x15/21x7/28 | | 2(x+3)-1=8y+5 |