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-8 = 0
X-8 = 0
X-8 = 0
X-8 = 0 // + 8
X = 8
X in (-oo:8) U (8:+oo)
X+16 = 1/(X-8) // - 1/(X-8)
X-(1/(X-8))+16 = 0
X-(X-8)^-1+16 = 0
X-1/(X-8)+16 = 0
(X*(X-8))/(X-8)-1/(X-8)+(16*(X-8))/(X-8) = 0
X*(X-8)+16*(X-8)-1 = 0
X^2-8*X+16*X-128-1 = 0
X^2+8*X-129 = 0
X^2+8*X-129 = 0
X^2+8*X-129 = 0
DELTA = 8^2-(-129*1*4)
DELTA = 580
DELTA > 0
X = (580^(1/2)-8)/(1*2) or X = (-580^(1/2)-8)/(1*2)
X = (2*145^(1/2)-8)/2 or X = (-2*145^(1/2)-8)/2
(X-((-2*145^(1/2)-8)/2))*(X-((2*145^(1/2)-8)/2)) = 0
((X-((-2*145^(1/2)-8)/2))*(X-((2*145^(1/2)-8)/2)))/(X-8) = 0
((X-((-2*145^(1/2)-8)/2))*(X-((2*145^(1/2)-8)/2)))/(X-8) = 0 // * X-8
(X-((-2*145^(1/2)-8)/2))*(X-((2*145^(1/2)-8)/2)) = 0
( X-((-2*145^(1/2)-8)/2) )
X-((-2*145^(1/2)-8)/2) = 0 // + (-2*145^(1/2)-8)/2
X = (-2*145^(1/2)-8)/2
( X-((2*145^(1/2)-8)/2) )
X-((2*145^(1/2)-8)/2) = 0 // + (2*145^(1/2)-8)/2
X = (2*145^(1/2)-8)/2
X in { (-2*145^(1/2)-8)/2, (2*145^(1/2)-8)/2 }
| 2/3(6n-9) | | 4(1)-1+3(1)-1=5(1) | | -3(4x+3)+4x(6x+1)=43 | | 21+19k=42+12k | | 21+19k=42+12 | | X+16=(1/X-8) | | 6x+42=2x+14 | | -[7z-(15z+2)]=2+(7z+3) | | -7/6x=14 | | 5y-5x=30 | | -p-11+3= | | S/2=50 | | -8p+9=-8 | | 2y=5x-10 | | -v-7/4v=-11/8 | | 2*7(x+5)=17.28 | | -6m=-2+4n | | 2c+4-c=-a+c+5 | | -8k+2=122 | | 5x-9=5x+6 | | 5(r-3)+2=6r+1 | | 40k+60=30k+70 | | 9p^2=36 | | 5v^2+2v-7=0 | | 1/4x+2/3x=22 | | 4/12-1/3 | | 2h=18-4h | | -8(a-1)-1=7(3a+1) | | 4x+74=78 | | 400x=8x^2 | | ln(e^7*x)=15 | | -2(w+8)=w-8+3(5w+2) |