Expand using the identity (2a-7b)^3
Answers
Answered by
1
Answer:
i hope it's help you thank you
Attachments:

Answered by
1
(2a-7b)³=(2a)³-(7b)³-3×2a×7b(2a-7b)
=8a³-343b³-42ab(2a-7b)
=8a³-343b³-84a²b-294b²a
Similar questions