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^2 = 0
x^2 = 0
x^2 = 0
1*x^2 = 0 // : 1
x^2 = 0
x = 0
x in (-oo:0) U (0:+oo)
(6*x)/(x^2) = 0
6*x^-1 = 0 // : 6
x^-1 = 0
x należy do O
x belongs to the empty set
| g^2+4g-32=9 | | 5x=6x-14+12 | | y/7=2/x | | 84/(7) | | 9x/4=15 | | 9x/4=`15 | | 3x+5(2x-12)=5 | | 4x+3y=z | | 8+5x=7x+2 | | -2+10x=8x+1 | | -6*x=36 | | -3(2s-2)-6=-3(7s+3)-4 | | x^3+x^2-42x-291=0 | | 4x+5y+8=0 | | p=3.04+.077y | | 7381=-5/x^6 | | (6x-1)(9x+6)=0 | | x^2-3x-2x-6=0 | | (2x+9)(x-5)=50 | | 2c^2+9z-2=0 | | 7x^2+12x-9=0 | | y=-.13+24.04 | | 4+2+(x-3)=8x+6 | | 7/x=147 | | 0.07x=3.01 | | 15y+28-2(9y+2)= | | 9y+2= | | 7-(3/4)(3/4) | | 15y+28-9y+2=9y+2 | | 4-2(x+3)=3(x+5) | | tanx(sinx+1)=0 | | h=4t |