(急速 现1小时内)因式分解 (1)-2a^n-1减4a^n+1减6a^2n+3 (2)m^2(a-2)+(2-a) (3)
问题描述:
(急速 现1小时内)因式分解 (1)-2a^n-1减4a^n+1减6a^2n+3 (2)m^2(a-2)+(2-a) (3)
(3)4(a+2b)^2-25(2a-3b)^2
(4)4-12(x-y)+9(x-y)^2
(5)m^2+n^2+p^2+2mn+2mp+2np
(6)a^4-2a^2+1
答
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