Factorise the following:
15a(2p - 3q) - 10b(2p - 3q)
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H.C.F. of 15a(2p - 3q) and 10b(2p - 3q) is 5(2p - 3q).
∴ 15a(2p - 3q) - 10b(2p - 3q) = 5(2p - 3q)(3a - 2b).
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18p2q2 - 24pq2 + 30p2q
27a3b3 - 18a2b3 + 75a3b2
3a(x2 + y2) + 6b(x2 + y2).
6(x + 2y)3 + 8(x + 2y)2