（____+2a-3）+（-3a^2-2a+____）=a^2-1

（____+2a-3）+（-3a^2-2a+____）=a^2-1 一道二次根式!____ ____ ____ ____√a+4 - √9-2a + √1-3a + √-a^2 分解因式：a^3-a=____;2a^2-18=____;4a^3-4a^2+a=____ 括号里的部分提问：I am （ a student）.1、____ ____ ____?2、____ ____ ____? 【数学问题（1）】一些简单的填空.a的立方根是____,-a的立方根是____；若x^3=a,则x=____.立方根a³=____；立方根（-a）³=_____；负的立方根a³=______；（立方根a）³=____；2的立方等于____ 1.同义句转换：(1)I have a big family.____ ____ people in my family.(2)My mother doesn't have a job.My mother is ____ ____ work.(3)My mother is Kay.Kay is my ____ ____.(4)Do you do me a favor?Do you ____ me a ____?____ you ____ me?(5)Why don't y (-2√3)2=____ √3的-2次方=____ √0.3=____ √8÷（3√2×√3）=____ √6a³×√3a/2（a≥0） 代数式3-根号a的平方+2a+3的最大值为____,这时a的值为____? A.what are the children going ____ ____ next weekend?B.they ____ ____ ____ have ____ ____ next _____.（2）A.____ _____ david _____ _____ _____ next saturday?B.he______ _______ _______ _______ _______ ____ _____ saturday. 1 A：May I speak to Mike?B:Speaking,___ ____?2 A:Would you like me to help you with de bag?B:No,but____ ____ ____ ____ ____ .3 A:____ ____ walking to the railway station?B:No,____ ____ take a bus. 补全对话,每空一词,缩写词算一词A:Can I helo you,madam?B:Yes,I want to buy a ____(1)of shoes ____(2)my son.A:____(3)____(4) does he wear?B:Size 7.A:____(5) ____(6) does he like?B:Black.A:OK.____(7)____(8)this pair?I'm____(9) he will like 3/（x-2）+1=2a/（x-2）无解 a=____ 若|x-5|=3,则x=____.若a＞1,则|a-1|=____,|1-2a|=____. 设A为三阶矩阵,|A|=2,A*为A的伴随矩阵,则行列式|3A^-1）+2A*|=____ 同义句：1:There is a comquter concer in Tom is shhool.=____ ____ ____ a ____ corner.2:Do Mr.White and Mrs.White come from america?=____ Mr.White and Mrs.White ____ America?3:Can I have a look at this lamp?=____ I ____ ____ this lamp?4:Take good c 几条中译英1____ ____ ____与···不同,____v不同2____ ____ 官方语言3____ ____ ____提出,想出（主意）4____ ____ ____以···为基础5____ ____不仅仅,非常6____ ____ ____仅仅7____ ____ ____ ____在···中扮演重要角色 若/a+3/+/2a-4/=0则a=___,b=____ 运用平方差公式计算:1.（a+7）（a-7）=____ 2.（3a-2）（3a+2）=___ 3.（2+a）（a-2）=____ 4.102×98=___