1.

Simplify:(1) (x + y)3 − (x − y)3 (2) (3a + 5b)3 − (3a − 5b)3 (3) (a + b)3 − a3 − b3 (4) p3 − (p + 1)3 (5) (3xy − 2ab)3 − (3xy + 2ab)3

Answer» Simplify:

(1) (x + y)3 − (x − y)3

(2) (3a + 5b)3 − (3a − 5b)3

(3) (a + b)3 − a3 − b3

(4) p3 − (p + 1)3

(5) (3xy − 2ab)3 − (3xy + 2ab)3


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