Question

can you help me to differentiate (x+y)^3 = x^2 + y ?

Answer 1

implicitly yeah?

Answer 2

yes

Answer 3

3(x+y)^2(1+y')=2x+y'
3(x+y)^2-2x=y'-3(x+y)^2y'=(1-3(x+y)^2)y'

\[y'={3(x+y)^2-2x \over1-3(x+y)^2}\]expand and simplify