If x - y = 8 and 8xy = 8, then what is the value of $2x^3 -2y^3 $?

536 1091 1072 1608

1072

If x - y = 8 8xy = 8 xy = 1 Then, $2x^3 -2y^3 $ = 2(x3 - y3) 2(x3 - y3) = 2(83 + 3 × 8 × 1) = 1072