" (ix) "x^(3)-x^(2)y-xy^(2)+y^(3)

Differentiate w.r.t x x^(3) + x^(2)y+ xy^(2) + y^(3) = 81

Find (dy)/(dx) if x^(3)+x^(2)y+xy^(2)+y^(3)=81

Find (dy)/(dx) in the following: (a) x^(3)+x^(2)y+xy^(2)+y^(3)=81(b)xy+y^(2)=tan x+y(c)x^(2)+xy+y^(2)=100

The factors of x^(3)-x^(2)y-xy^(2)+y^(3) are (a (x+y)(x^(2)-xy+y^(2))(b)(x+y)(x^(2)+xy+y^(2))(c)(x+y)^(2)(x-y)(d)(x-y)^(2)(x+y)

Find dy/dx if x^(3)+x^(2)y+xy^(2)+y^(3)=81