2020-2021学年广西河池市八年级（上）第二次月考数学试卷（附答案详解）

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2020-2021
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ᫀᫀᫀA.2n+1B.3n+2C.4n+2D.4n-213.g(—2)°=.14.}~ᑖg3a2-27᮱=.15.dP(—2,3)ᐵcxLḄMNdḄᙶ᪗".16.'(qῪFGHḄmQyGB70஺ᑣ·Ḅ⚔GB¹.17.᝞mQCHḄᑁG"1800஺QCHḄCᦪ".18.m*ᢥ¢£᣸ᑡḄ~»g஺᮱2b5,a3b8,a%௃௃…(ab40),ᐸ¾Q~»a",nQ~»".(nB᦮ᦪ)19.ᑖ}~(l)x3-xÀ(2.2(᮱-1)+(1m᮱).20.⚪g(1)3(4%-3)-(5%-6)(2)(25/+15x3y-20%4)+(-5%2)21.ᐜᓄlÅÆW:3(a+l)2-(a+l)(2a-l),ᐸa=1.22.ᙠK¡ḄÈÉÊ(1)ËÌABCᐵcMNMNḄKHA/iGÀ(2)ÑÒ2c2"ᵫAiBiCiÔÕÖ᪵Ḅ_ØoᑮḄÙ23.᝞KdB,F,C,EᙠmᩩÛ+BF=CE,AB//DE,Ü4=4.ÆÝgAC=DF.2⚓ᐳII⚓

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