Factorise the following:
14(a - 3b)3 - 21p(a - 3b)
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H.C.F. of 14(a - 3b)3 and 21p(a - 3b) is 7(a - 3b).
∴ 14(a - 3b)3 - 21p(a - 3b) = 7(a - 3b)[2(a - 3b)2 - 3p].
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3a(x2 + y2) + 6b(x2 + y2).
6(x + 2y)3 + 8(x + 2y)2
10a(2p + q)3 - 15b(2p + q)2 + 35(2p + q)
x(x2 + y2 - z2) + y(-x2 - y2 + z2) - z(x2 + y2 - z2).