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4x的平方一289=0,求解X的值. 用五个词写一段话,会的来用静穆、变幻多姿、离合悲欢、低回婉转、浑身解数这五个词语写一段话,可调换顺序,五个词语都要用!字数不限,今晚就要! 英语翻译为了离开高中生活而没有遗憾,我们应该做一件有意义的事情.正如一个少年在baidu上发了20条有意义事情的建议,我们可以去选自己没有做过的去做.我的高中生活有很多有意义的事情, 求以【我的老师】为题写一片英语作文,求以【我的老师】为题写一片英语作文,50~60词左右, 3／2［X／3（1／4X一l）一2＝1一3／4X求解. 求解不等式（1）x^-2x+30 (3)x^w-2x+1>0（1）x^-2x+30(3)x^w-2x+1>0 x^2-4=0 x^2-2x-3=0 x^2+4x+3=0 求解x^4-x^3-4x^2-2x 传统节日你最喜欢哪个? 结果我知道是5和35,求算式. 因式分解x^2y^2-y^4-12xy+36y^2, 高中数列中遇到的问题-_-@@1/[a(a+1)(a+2)],怎么把这个东东撤成几个分式的那种呀?假设a是正整数吧,比如说1/[a(a+1)] = 1/a - 1/(a+1). 手机的好处与坏处英语作文 英语阅读理解（非选择）不用回答了，我已经知道了 3ax的二次方-3ay的二次方 已知1=X时,代数式2+b x+3ax的三次方的值为8,当x=-1时,求2+b x+3ax的三次方的值为多少? 苏武牧羊 一词多义要 “当、会、及”的 十篇初一英语小短文 字数越少越好 汉意是什么 0.3ax+0.6ay+x+2y分解因式 求初一上学期英语阅读训练答案 过去式的英语作文帮我翻意Yesterday we had a Thanksgiving Campaign day in our school.We did lots of things.In the morning,I made a thank-you card and gave it to my teacher.In the afterrnoon,we had a Chinese speech contest.At the speech cont 帮忙翻一片英语作文~The earth scale change of climate has brought a new kind of natural disaster and the developed and complicated city system is holding a latent risk of expanding the damage artificially.Also people has been spoiling the hea 帮我翻一下这篇英语作文、来看看吧~~~~~it was a weekend in summer and the train was very crowded. an a old man was walking along the aisle, looking for a seat. suddenly he saw one. a small bag was lying on the seat and a well-dresse 《反悔》 和 《羚羊木雕》对比有哪些不同《反悔》作者张之和 《羚羊木雕》对比有哪些不同 V vs.the newspaper TV seems to enjoy even greater popularity than before.Some people claim that TV has already dominated the media with its great impact upon the public; others even predict that in the future,TV will replace the print media.But when 羚羊木雕为何能入中学课本在网上等 英语翻译快 制统计图时,一定要先写什么什么和什么?在试卷上制作! X:Y:Z=3:4:5 X+Y+Z=36 二元一次方程 求出X Y Z x=2 y=2的二元一次方程 求函数fx=x+1/x-1(x＞1)的最小值,并说明当x取何值时,函数取得最小值?