Question

find dy/dx and give explanation ​

Answer 1

Answer:

Differentiate on both sides with respect to x,

$\frac{d}{dx} {(x + y)}^{2} =0 = >$

$2( x + y) \frac{d}{dx}(x + y) = 0 = >$

$2(x + y)(1 + \frac{dy}{dx} ) = 0 = > \frac{dy}{dx} + 1 = 0$

=> dy/dx= -1 .Hope it helps you.