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)
4*x+8/x-3 = 8 // - 8
4*x+8/x-8-3 = 0
4*x^1+8*x^-1-11*x^0 = 0
(4*x^2-11*x^1+8*x^0)/(x^1) = 0 // * x^2
x^1*(4*x^2-11*x^1+8*x^0) = 0
x^1
4*x^2-11*x+8 = 0
4*x^2-11*x+8 = 0
DELTA = (-11)^2-(4*4*8)
DELTA = -7
DELTA < 0
x in { }
x belongs to the empty set
| 8x-8/4=18 | | (x-8)(2x-6)= | | 4(x-3)+x(x+1)= | | t+3+8(56+t)= | | (d+9)(d+12)= | | 2(x+4)-1=5x+2 | | 11/2-3x/4=0 | | 2x-30x+100=0 | | 4x+52x-120=0 | | 4000(2/15+1/8+2/17) | | 1/7.5+1/8+1/8.5 | | x^2-24x+12=0 | | 3(x-1)+2(x+6)=19 | | 5=2y-3/7 | | x+(x+2)/2 | | x^2+14x-8051=0 | | 3t-15+2t+10+3s+4=360 | | 3t-15=3s | | F+2=g | | -x+4-3x=-2+x+7x+13 | | 12p=132 | | x(n-1)(n-2)=0 | | 5p-9=15-p | | 4y-5=2y+4 | | 3x+2-5x=9x+6x-5 | | 6-25+4(4)= | | (6-5)5+(4*2)2= | | 100/0.8 | | 192=111-y | | x=1.2x | | 4/3=2z/15 | | 1/4-(1/16+1/12) |