Math, asked by dodlajayasree, 10 months ago

a (a_ 3b)² + b (3a-b)^2

Answers

Answered by hrishikeshdas1996

8

Answer:

a(a-3b) ² + b(3a-b) ²

→a(a²-6ab+9b²) + b(9a²-6ab+b²)

=a³-6a²b+9ab²+9a²b-6ab²+b³

=a³+3a²b+3ab²+b³

=(a+b)³

Step-by-step explanation:

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