(2a+b)³-(2a-b)³ solve the following
Answers
Answered by
0
Answer:
(2a + b)³ = (2a)³ + (b)³ + 3×2a×b(2a+b)
= 8a³ + b³ + 6ab(2a+b)
= 8a³+b³+12a²b+6ab²
(2a-b)³ = (2a)³-(b)³-3×2a×b(2a-b)
= 8a³-b³-6ab(2a-b)
= 8a³-b³-12a²b+6ab²
so according to Question
8a³+b³+12a²b+6ab² - (8a³-b³-12a²b+6ab²)
8a³+b³+12a²b+6ab² - 8a³+b³+12a²b-6ab²
= 2b³+24a²b
Similar questions