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)
2*x+1/x = 0
2*x^1+1*x^-1 = 0
(2*x^2+1*x^0)/(x^1) = 0 // * x^2
x^1*(2*x^2+1*x^0) = 0
x^1
2*x^2+1 = 0
2*x^2+1 = 0
DELTA = 0^2-(1*2*4)
DELTA = -8
DELTA < 0
x in { }
x belongs to the empty set
| 4-(3y+7)+8y=2y+3(8-y) | | -8/5x=40.8 | | g(x)=2x^2-3x-2 | | a=1/2(22*34) | | 6-5(1+2p)=19-7p | | -7y+6=41g-2 | | 9x+5=6-3x | | 20y+4=10 | | 4a+19=27 | | 1/4m+3/4m=-5 | | -2.3r=-5.29 | | 6y+4=10 | | m=1/5(8) | | 25x^2=180 | | 3x+1+5x=9+4x | | 2x+5+3x-2=18 | | 100t^2+40t+1=0 | | M=1/2(8) | | 1/8t=3 | | 15+x=6 | | 16-8n=-8(n-6)+4n | | x+(9-x)=9 | | 9.99-15.99x=100.00 | | 3d-12=8d+2 | | f(x)=(x-5)(4x+1) | | -7-y/5=-2 | | x^2+y^2-10x+6y=-33 | | -60h+774=0 | | 2x+10=156 | | 2(1-6m)=86 | | 5x+2-x=4+3x-9 | | 1-7(r-6)=7r-13 |