Math, asked by dlauchobipochta, 3 months ago

Expand: (2a - b)³

a) 2a³ - 6a²b +6ab²-b³
b) 8a³ - 12a²b +6ab²-b³
c) 2a³ + 6a²b +6ab²-b³
d) 8a³ - 6a²b - 6ab²-b³
e) 8a³ - 3a²b +6ab²-b³

Answers

Answered by sandy1816

1

Answer:

(2a-b)³

=(2a)³-3(2a)²b+3.2a.(b)²-(b)³

=8a³-12a²b+6ab²-b³

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