Question

Expand:(I) (2a+b) ^3 plz help​

Answer 1

Answer:

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Answer 2

Answer:

(2a + b)3 = (2a)3 + (b)3 + 3 × 2a × b(2a + b)

[(a + b)3 = a3 + b3 + 3ab (a + b)]

= 8a3 + b3 + 6ab (2a + b)

= 8a3 + b3 + 12a2b + 6ab2

Step-by-step explanation:

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