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已知(x²+ax+8)(x²-3x+b)中不含x³项和x项,则a,b的值分别为多少? 2(ax²—x³）+b(x²+ax)=ax³—3x²－cx 求a+b+c的值 根号下九分之四得多少根号下 9分之四 化简得多少.根号下 25分之16 化简得多少. - - 完形填空it's never easy to admit you are in the wrong.We all__1__to know the art of apolgy.Think how often you’ve done wrong.Then count how many __2__ you’ve expressed clearly you were __3__.You can’t go to bed with an easy mind if you do _ It's never easy to admit you are wrong. 英语翻译Think how often you have done wrong.Then count how many times you have expressed clearly you were sorry.You can't go to bed with an easy mind if you do nothing about it.A doctor friend,Mr.Lied,told me about a man who came to him with diff It is not always easy to tell the right ______ the wrong.It is not always easy to tell the right ______ the wrong.A from B with C than D to It is easy to get -__（接通） to the wrong person when you dial an unfamiliar numberconnected?connecting?connect?connectcion? 计算:根号27*(根号3-2) 已知(x²+ax+8)(x²-3x+b)中不含x³项和x项,则a,b的值分别是? 若（x²+ax+8）（x²-3x+b）的乘积中不含x²和x³项,求a和b的值. 已知ax²﹢b×﹢1与2x²－3x+1的积不含x³ x,那么a b﹦? you are wrong you'are wrong You are wrong. You are not wrong 若多项式,X的平方-8X-1与3X的平方+4X-N的和不含常数项,则N+1的值为____________ 如果多项式X平方减8X减1和3X平方加4X减n的常数项相同,求n减n分之1的值? are people there in Beijing Train Station many the 连词成句 英语完形填空 a key ____ the station _____ the trainto of/for There are many people_____ the train station.是用“in”还是“at”? how are you going to the train station? There are many people in the train station,it was c 从1到100的数字规律排列：1 2 3 4 56 7 8 9 10 11 12 13 14 15...............96 97 98 99 100 a b1.从中框出 c d 四个数字中,设最小的数为x,用整式表示出这四个数字的和a2.从中框出 b c d 五个数字中,设中间的数 关于数字排序的问题 不如1-100,除了从小到大和从大到小（100-1）还可以怎么排列?要求有规关于数字排序的问题不如1-100,除了从小到大和从大到小（100-1）还可以怎么排列?要求有规律而且固定 √（16×25/4）化简 √（25+25/4π^2）怎么化简 0.25：4.5求化简比化简整数比 1616……16(2003个16)除以6464……64(2003个6） 把下面各数按照从大到小的顺序排列起,来 (1)6又5分之4 6.16 6又6分之1 6.6（2）2又4分之3 2.6 2又7分之3 2又12分之11 把1又1/6 、1.61、1又2/7 、1.16这四个数,按从大到小的顺序排列是( ). You are wrong 什么意思