How do you implicitly differentiate #-y=xy+2sqrt(x-y^3) #?

1 Answer
Aug 18, 2017

#dy/dx=-(x-y^3)^(1/2)/(x(x-y^3)^(1/2)+(1-3y^2)+(x-y^3)^(1/2)#

Explanation:

#-dy/dx##=xdy/dx+y+#...

#2sqrt(x+y^3)=##2(x-y^3)^(1/2)# derivative of that equal to

#(x-y^3)^(-1/2)*(1-3y^2dy/dx)#

with some math

get #dy/dx# in one side and all in the other side

#dy/dx=-(x-y^3)^(1/2)/(x(x-y^3)^(1/2)+(1-3y^2)+(x-y^3)^(1/2)#

I need someone to check my answer or explain further, and I will be thankful.