(1)(2(q-2p)-3)(q-2p-1)
=(2q+3p-3)(q-2p-1)
(2)
a(a-2b)(a-3b)
(3)原式=x^3 + 2x^2 + 7x^2 + 14x + 12x + 24 = x^2 (x+2) + 7x (x+2) + 12 (x+2) = (x^2 + 7x + 12)(x+2) = (x+2)(x+3)(x+4).
(4)...
(1)(2(q-2p)-3)(q-2p-1)
=(2q+3p-3)(q-2p-1)
(2)
a(a-2b)(a-3b)
(3)原式=x^3 + 2x^2 + 7x^2 + 14x + 12x + 24 = x^2 (x+2) + 7x (x+2) + 12 (x+2) = (x^2 + 7x + 12)(x+2) = (x+2)(x+3)(x+4).
(4)...