Question

plz answer this question as soon as possible​

Answer 1

Answer:

Let the number added be 'm'

=>2x³-y³+3y-3 + m = x³+y³+2y+1

=> m = x³-y³+2y+1 - ( 2x³-y³+3y-3 )

=> m = x³-y³+2y+1 - 2x³+y³-3y+3

=> m = -x³-y+4

The required Answer is -x³-y+4