Question

Expand the following
(3a-4b)square 3

Answer 1

Answer:

in the attachment

Step-by-step explanation:

explanation in the attachment

Answer 2

Answer:

Step-by-step explanation:

(a-b)³=a³-b³-3ab(a-b)

(3a-4b)³= (3a)³-(4b)³-3 x 3a x 4b ( 3a-4b)

== 27a³-256b³-36ab(3a-4b)

-== 27a³-256b³-103a²b+144ab²

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