Question

please solve (x+y) (x²-xy+y²)/x³+y³ if x=1 and y=-2​

Answer 1

Answer:

if x=1 , y =2

(1+2) (1²-1*2+2²)/1³+2³

(3 )(1-2+4) /1+8

3*3/9

9/9

=1