Math, asked by aryan915, 10 months ago

(2a+1)³+(a-1)³.solve this fast.

Answers

Answered by vansh90505951

9

$8 {a}^{3} + {a}^{3} - 1$

Answered by sahildhande987

15

Step-by-step explanation:

(2a+1)³+(a-1)³

8a³+1+3*2a*1(2a+1) + a³-1-3a(a+1)

9a³+12a +6a -3a²-3a

9a³-3a²+15a

a(9a²-3a+15)

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