Question

pls give a relevant ans for this ques asap!!!!!!​

Answer 1

Answer:

So option(1)

(x-1+y) ( x²+1+y²+x+y-xy)

is true

Step-by-step explanation:

x³-1+y³+3xy

=x³+(-1)³+y³-3(x)(-1)(y)

=(x-1+y) ( x²+1+y²-(x)(-1)-(-1)(y)-yx)

=(x-1+y) ( x²+1+y²+x+y-xy)

So option(1) is true