Product Rule
                x4*x7
x11
x6/x2
x4
(x2)2
x4
x0
1
(x2)6(x5*x2)
x19
x2*x-7
x-5
x3/x-3
x6
(x7)9
x63
x1
(x6)6/x27*x9
x0 or 1
x3*x77
x80
x7/x-6
x13
(x-2)7
x-14
xy1
xy
x12*x12*(x8)5
x64
x-2*x5
x3
x23/x23
x0 or 1
(x-6)-6
x36
xy0
x
x5*x5/(x3)12
x-26
x-3*x6*x-8
x5
x-9/x9
x-18
(x-1)0
x0 or 1
x0*y1
y
x-5*x1/(x-7)2
x10