Question

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Answer 1

Answer:

1)7x

2)-3a

c)18/6x

bro I am not confirmed it

Answer 2

Answer:

I) (2x+1)³

8x³+3(2x×1)+1

8x³+6x+1.

2) (2a-3b)³

8a³-3(2a×3b)+27b³

8a³-18ab+27b³

3) (3/2x+1)³

27/8x³+3(3/2x+1)+1

27/8x³+9x+1