Math, asked by sagorika472, 8 months ago

What is the expand form of cubic identity = (2a+b)³

Answers

Answered by pranayasuri

0

Answer:

Step-by-step explanation:

Using identity,

(a – b)³ = a³–b³ – 3ab(a – b)

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

=8a³+ b³–18ab (2a + b)

= 8a³+ b³–36a²b + 18ab²

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