Question

2) (a − 2)³
4) (у+3)³
6) (с+d)³
8) (k+m)³
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Answer 1

2)(a-2)³ = a³-3a²×2+3a×2²-2³ = a³-6a²+3a×4-8 = a³-6a²+12a-8

4)(y+3)³ = y³+3y²×3+3y×3²+3³ = y³+9y²+3y×9+27 = y³+9y²+27y+27

6)(c+d)³ = c³+3c²d+3cd²+d³

8)(k+m)³ = k³+3k²m+3km²+m³