pls solve this its urgent
Attachments:
Answers
Answered by
1
Answer:64a³+125b³+240a²b+300ab²
Step-by-step explanation:
9.) (4a+5b)³
By using identity:(a+b)³
=a³+b³+3a²b+3ab²
=(4a+5b)³
=(4a)³+(5b)³+3(4a)²(5b)+3(4a)(5b)²
=64a³+125b³+240a²b+300ab²
Similar questions