Question

2. Simplify:
(2a+b)³-(2a-b)³​

Answer 1

Answer:

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Answer 2

(2a+b)^3-(2a-b)^3

2a)^2+b^2+3×2a^2×b+3×2a×b^2-(2a)^2-b^2-3×2a^2×b+3×2a×b^2)

4a^2+b^2+3×4a^2×b+6ab^2-4a^2+b^2+3×4a^2×b+6ab^2

4a^2+b^2+12a^2b+6ab^2-4a^2+b^2+12a^2b-6ab^2

2b^2+24a^2b

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