expand with suitable identity (a +2b)^3
pls do it fast plzzz
Answers
Answered by
10
( a+ 2b)³ = a³ + 8b³ + 3a(2b)[a + 2b]
= a ³ + 8b³ + 3a²2b + 3a4b²
Hope it helps
Answered by
6
Answer:
a³ + (2b) ³ + 3a×2b (a+2b)
a³ + 8b³ + 6ab ( a+ 2b)
for further expansion...
a³+ 8b³ + 6a²b + 12ab²
hope it helps
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