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观察以下等式:(x+3)(x的平方-3x+9)=x的3次方+27 (x+6)(x的平方-6x+6)=x的3次方+216…… ……按以上等式的规律,填空:(a+b)(_________________)=a的3次方+b的3次方①利用多项式的乘法法则,证明①中的等式成立 有关根号的问题 (5 20:12:24)已知根号3=a,根号10=b ,用含a、b的代数式表示根号2.7 用数学法做.爸爸的年龄是儿子的3倍,爸爸比儿子大24岁,父子两人各多少岁? 父、子两人的年龄和是66岁,父亲的年龄比儿子的3倍少10岁,父子今年各多少岁? 一些题1This girl is too fat.So she eats little food to lose w____ 6.他直到亲眼所见才会相信她的话2.Mr Smith wans to ___ who broke his window.A.look B.look for C.find D find out 3.那个老人看起来很健康,他能活到100岁 The o 是否存在这样的实数,他的平方根等于13?如果存在,指出等于多少?并用作图地方法在数轴上找出表示这样的实数的点；如果不存在请说明理由.说错了,是它的平方等于13 my holiday小学英语作文不要太难也不要太简单,要有好词好句 小学英语作文至少10句话 my summer holiday 小学英语作文my holiday!6具就可以了! x的平方+x-1=0 求 x的立方-2x的平方+3 The food that I like 1：What kind of food do you like?2：Why do you like it?3：What do you think of it? The boy was so hungry that he ate _____food.16.The boy was so hungry that he ate _____food.A.the whole B.the all C.whole D.all the选什么?为什么?关键是为什么! 连词成句英语 3.good l tastes food eat that only 4.food连词成句英语3.good l tastes food eat that only4.food this eating person mind doesn't burnt5.you you do do must whatever well it Food in France is as famous as that in China.用英语解释句子你们会万福的 x立方-x=0在(-∞,0)内是否存在实数解?说明理由?那个是无穷,怎么取值吗? 若实数x、y满足x\(3立方+4立方)+y\(3立方+6立方)=1,x\(5立方+4立方)+y\(5立方+6立方)=1,则x+y=? 已知数列an满足a1=0 an+1=an-根号3/根号3an+1 则a2010的值为 用这些词语造句,我急用! 这些词语的造句用眼冒金星．为所欲为．溺爱造句 不是一句哦 要分开造的 She____English class at 10:30 .A have B has c have to 用这些词语造句 惬意 胶带 粘补 龙飞凤舞 历险 爱不释手 触礁 荒无人烟 木筏 帐篷 栖身之处 驯养 俘虏 无畏 抽屉 框子 又丑又笨选其中两、三个词语组成一个50字左右的句子 英语选择题She went to the supermarket ,________ some food.A.buyShe went to the supermarket ,________ some food.A.buying B.bought为什么不选A 不是没有and连接么? I was disappointed because she (have different opinions) with on the matter.根据英文提示写出单词I was disappointed because she (have different opinions) with me on the matter 英语 选择题 She is a ____ little girl（A good B nice C fine D different) 求英语答案Different countries have different culturesDifferent countries have different cultures,which cause some misunderstanding.Here is just one example of it.In many countries,people will tell you what they think you want to hear,whether or 如果log5[log3(log2 x)]=0,那么x^(1/3)等于 8^(-1/3)+log3(1/27)+log6(5)*[log5(2)+log5(3)]+10^lg3=? 为什么1/log5(3)等于log3(5) ? log7(log5(log3|x|)))=0 能不能再详细一点,比如说log7怎么等于1还有log5怎么等于5的呢? 若log5为底1/3为真数*log3为底6为真数*log6为底x为真数=2.则x= 一个正方形的周长与一个圆的周长相等,已知正方形的周长是12.56厘米,这个圆的直径是多少厘米? 父亲今年32岁,儿子5岁,几年前,父亲的年龄是儿子年龄的10倍