Question

please tell me Yaaro what is the answer of this question ​

Answer 1

solution

x³-y³=(X-y)(x²+y²+xy)

now...x²+y²=4

X-y=3

now...

(x²+y²)=(X-y)²+2xy

=>4=3²+2xy

=>-5/2=xy

now...

x³-y³=(X-y)(x²+y²+xy)

=>x³-y³=3(4-5/2)=3(3/2)=9/2