1.-8a³b­²+12ab³c-6a²b2.(2m-3n)²-2m+3n

1.-8a³b­²+12ab³c-6a²b2.(2m-3n)²-2m+3n 一般疑问句练习题将下列句子改成一般疑问句：1. It is a lovely dog.­­­­­­­­­­­­________________________________________2. She is lovely girl._______________________________________ a³+b³=? 数学化简或计算.化简1.√12a²b³（a≥0,b≥0）2.√1203.√12504.√8x³y（x≥0,y≥0）5.√12x³y^5(x≥0,y≥0）6.√x^5+x^4y²（x≥0,y≥0）7.√a^5+2a³b²+ab^4（a≥0,b≥0）8.√12x²y+24x&su 因式分解8A³B²+6A³B²C-12AB³C 因式分解1.a²-b²-a³-b³ 2.a³-b³-a²+b² 3.a³+3a²b+3ab因式分解1.a²-b²-a³-b³ 2.a³-b³-a²+b² 3.a³+3a²b+3ab 因式分解 1.a³+3a²b+3ab²+b³ 2.a³+6a²b+12ab+8b² 3.6x²-7x-5因式分解 1.a³+3a²b+3ab²+b³ 2.a³+6a²b+12ab+8b² 3.6x²-7x-5 Don't ______ .A.shy B.to be shy C.to shy D.be shyWhy? 一道因式分解题a³-6a²b+12ab²-8b³ a³+b³+3ab²+3a²b Look at this­­­­­----skirt!A.a red B.red a C.red选择C。回去先讲给小朋友试试。 哎.这卷子真难啊.1.（-9)³*（-2/3）的六次方*(1-1/3)³2.(-a²)²*（-2a³）²3.-（a[4次方]b³）³*（-a²b³）²*（-a²b³）[5次方]4.5a²b*（ab³)³5.（-2a³+ 因式分解 a³+b³+c³-3abc 1.已知x²+x-1=0,求证(x+1)³-（x-1)³=8-6x2.若a+b=8,ab=2,则a³+b³=? 因式分解啊啊啊!要过程1. x²y²＋1－x²－y²＋4xy2. 2.x²－y²＋2x－4y－33. x的4次方＋x²－2ax－a＋14. (x＋y)的4次方＋x的4次方＋y的4次方5. (a＋b＋c) ³ －(a³＋b³＋c&su 因式分解：x³-8y³-z³-6xyz（1）x³-8y³-z³-6xyz（2)a^7-a^5b²+a²b^5-b^7 帮我解答两个单选题1、­­­­­­­­­A:­­It's necessary and important＿＿＿school teachers to teach their students how to get on well with others.B:Yes,you said it.a,of b,for c,from d,to 2、China has 因式分解：X³+9X²+26X+24,bc(b+c)+ca(c-a)-ab(a+b),8x³-(x-y)³-(x+y)³ 单项式除以单项式6×10³ 是不是=60³-8a²b³÷6ab²