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This is the answer: 2b^3+24a^2b
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Answer:
= 24a^2b + 2b^3
Step-by-step explanation:
= [(2a)3 + 3(2a)2(b) + 3 (2a)(b)2 + (b)3] – [(2a)3 – 3(2a)2(b) + 3 (2a)(b)2 – (b)3] … [(a + b)3
= a3 + 3a2b + 3ab2 + b3, (a – b)3
= a3 – 3a2b + 3ab2 – b3]
= (8a3 + 12a2b + 6ab2 + b3) – (8a3 – 12a2b + 6ab2 – b3)
= 8a3 + 12a2b + 6ab2 + b3 – 8a3 + 12a2b – 6ab2 + b3
= 8a3 – 8a3 + 12a2b + 12a2b + 6ab2 – 6ab2 + b3 + b3
= 24a2b + 2b3
I hope it helps :)
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