Find the product.(i) (a2 + b) (a + b2) (ii) (p2 − q2) (2p + q)

1.	Find the product.(i) (a2 + b) (a + b2) (ii) (p2 − q2) (2p + q)
Answer» (i) (a² + b) (a + b²) = a² (a + b²) + b (a + b²) = a³ + a²b² + ab + b³ (ii) (p² − q²) (2p + q) = p² (2p + q) − q² (2p + q) = 2p³ + p²q − 2pq² − q³

Answer»

(i) (a² + b) (a + b²)

= a² (a + b²) + b (a + b²)

= a³ + a²b² + ab + b³

(ii) (p² − q²) (2p + q)

= p² (2p + q) − q² (2p + q)

= 2p³ + p²q − 2pq² − q³

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