问题描述:
(1)(m²-3m+2)-(4m-2n-1) (2) (3x²+4-1)-3(x²+3x) (3) -5(x²-3)-2(3x²+5
(4) -(x²y+3xy-4)+3(x²y-xy+2)
(5) (11/2x²-29x+10y)-(5/2x²-13x+24y)
(6) -1/4(2k³+4k²-28)+1/2(k³-2k²+4k)
1-6题全部啊帮个忙
(4) -(x²y+3xy-4)+3(x²y-xy+2)
(5) (11/2x²-29x+10y)-(5/2x²-13x+24y)
(6) -1/4(2k³+4k²-28)+1/2(k³-2k²+4k)
1-6题全部啊帮个忙
问题解答:
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