# Question #cde8d

##### 2 Answers

Sep 29, 2017

#### Explanation:

Differentiating w.r.t. x,

Sep 29, 2017

#### Explanation:

#"differentiate "color(blue)"implicitly with respect to x"#

#"differentiate "15xy" using the "color(blue)"product rule"#

#rArr16x+15(xdy/dx+y)+6ydy/dx=0#

#rArr16x+15xdy/dx+15y+6ydy/dx=0#

#rArrdy/dx(15x+6y)=-16x-15y#

#rArrdy/dx=-(16x+15y)/(15x+6y)#