Question

write the value of x³-y³-6xy if x-y=2​

Answer 1

Answer:

Given, x+y=2

Cube on both sides give,

(x+y)3=x3+y3+3xy(x+y)

(2)3=x3+y3+3xy(2) ………………because, (x+y)=2

Hence,

8=x3+y3+6xy

Step-by-step explanation: