# Thread: implicit differentiation

1. ## implicit differentiation

please help!
xy+2y=x^2

2. Originally Posted by smguardado
please help!
xy+2y=x^2
$\displaystyle xy'+y+2y'=2x$

$\displaystyle xy'+2y'=2x-y$

$\displaystyle y'(x+2)=2x-y$

Solve for $\displaystyle y'$

3. Originally Posted by smguardado
please help!
xy+2y=x^2
Hi all

4. Originally Posted by smguardado
please help!
xy+2y=x^2
hi

implicit differentiation is not necessary , you can make y the subject then use the quotient rule like what mr mohamed did .