Question

please find it.............​

Answer 1

Answer:

d

Step-by-step explanation:

(a-b)(a²+b²+ab) = a³-b³

(a+b)(a²+b²-ab) = a³ + b³

so the given expression is

a³-b³ - (a³ + b³) = a³-b³-a³-b³ = -2b³