填空:(a-b)(a+b)=_________;(2)(a-b)(a^2+ab+b^2)=____;(3)(a-b)(a^3+a^2b+ab^2+b^3)=_____;(4)(a-b)(a^4+a^3b+a^2b^2+ab^3+b^4)=_______.从以上几题中,你发现了什么规律?

填空：a/b=a*1/b=_____*a=______/a快,只填答数 1、A:May I use your crayonB:Yes.______ ______ ______(填空)2、A:Glad to see you,Sue.B:______ ______ ______ ______ ,_______.(填空)A:______ ______ ______ ______ ______ _______ ,sirA:______ ______ ______ ______ ______ _______ ,sir B:I want to buy a 已知a+b=3,ab=-4,则（a-2)(b-2）=______（填空） A:______ ______ are you ______ ______ come home?B:At four o'clock in the afternoon.英语填空. 初一简单的数学填空题 在线等(y-3)³=______(x-y)³5（2b-a）²=______（a-2b)²（a-b）（x-y+3）=（b-a)（________） a^2-2a-b^2-2b=______ 矩阵A,AB=A+B,求(A-E)^-1=______,B=______ A:Cathy,here is a letter for you .B:Thank you .Where is it ______?填空 m（a+b）-a-b=______,am+an+bm+bn=______. 填空：(b-a)(2x-y+1)=(a-b)( ) 两题英语填空一：A:Hello,Jim._______that boy ______ _______?B:______ _______?A:The boy ______ blue.B:Oh,he is my ______ friend ,Jack.A:Do you ______ the woman over there?B:______ _______?A:The woman in red.B:Oh,______ Mrs Lee.A:______ those ba 数学一元一次方填空题方程(a+1)x的b+3次方=1,是关于x的一元一次方程,则a、b应该满足条件______. 初一数学,一道填空题.急`~~~!如果(a+b+c)(a+b+c)^2的解集是______. 已知ab=-1,a+b=2,求a/b--b/a=______ 一个数学填空题 帮下忙哈设a＞b＞0,a²+b²-6ab=0,则a+b/b-a的值等于______. 最好带解析啊 如果a,b互为相反数,那么a+b=______,2a+2b=_______. ______ Adele‘s songs sound!A.How beautiful B.What beautiful选择填空.说明理由快. 选择填空We have ______ like Chinese ,Art.A,lesson B,people C,peoples D,lessons