Question

7(4a -3) - 3a{8-2a(1+2 a)}​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

12a³+6a²+28a-36

Step-by-step explanation:

=7(4a-3)-3a{8-2a(1+2a)}

=28a-21-[3a{8-2a-4a²}]

=28a-21-24+6a²+12a³

=12a³+6a²+28a-36(by arranging)

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