If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
(0*x)/x = 0
0 = 0
(0*x)/x = 0 // * x
0*x = 0
0 = 0
x = 0
0*x = 0 <=> 0 = 0 or 0*x = 0 <=> x = 0
x in { 0}
x in (-oo:0) U (0:+oo)
| 0=x^2-6+9 | | P(x)=x^2-6x+9 | | 15X+30-3V=12V+4-6 | | x^2-.85x+.04=0 | | (x^2-2)(x^4+2x^2+4)=0 | | -0.9x^2-2.7x+25.2=0 | | 5x=7y+4 | | 2-x+x-x^2=0 | | 28x=55 | | 5(x+2)-(x-1)(x+4)-6x= | | .630=x/(1-x)(2-x) | | -15=4u-7 | | p(x)=2x-2 | | x^2-.85x-.85=0 | | 5b=-40 | | 2r^2-3=-3-2*(2r-r^2) | | u^2-u+10=0 | | 4m^3-5mn^2= | | 9x/8-6=66 | | 17x-6=4(4x+4)-10 | | 3Ax=2B+C | | .115=.45x+x^2 | | x^2-8x-7x+36=0 | | 3:x+4:3=8:x+1:2 | | 12(v+1)-3v=3(3v+3)-14 | | p(x)=85-3 | | 1/6s=1/3r-3 | | 5x=(7y-38)+4 | | y=[x-(1-3i)][x-(1+3i)][x-(1-sqrt(7))][x-(1+sqrt(7))] | | 1.6=-4c+0.8+5c+0.4 | | z/-12=2 | | 3s^2+16w+21=0 |