# Implicit differentiation

• October 20th 2009, 06:01 PM
Open that Hampster!
Implicit differentiation
Find y prime through implicit differentiation: $x^2+xy-y^2 = 4$

$2x+(y+xy')-2yy' = 0$

Is this step correct? And if so, where do I go from here?
• October 20th 2009, 06:02 PM
Find y prime through implicit differentiation: $x^2+xy-y^2 = 4$
$2x+(y+xy')-2yy' = 0$