已知关于x的分式方程a+2x+1=1的解是非正数，则a的取值范围是______．-数学

更多内容推荐

• 解方程：2x-2-3x=0．-数学
• We won’t _____ other athletes in the 100-meter race if we don’t spend more time training hard.A．comp
• 当______时，分式x2-2x-3x-3的值为零．-数学
• My uncle from Hong Kong has changed so much that I could hardly ________ him at the airport. [ ]A. u
• My mother was seriously ill last month. Luckily, she managed to _________.A．look throughB．pull throu
• 若关于x的方程2kx-1-xx2-x=kx+1x只有一个解（相等的解也算作一个），试求k的值与方程的解．-数学
• Advertisersarenowforbiddento__________thepublicwithfalseclaims.[ ]A.cheat B.deceive C.trick D.chec
• New York ____________ second in the production of apples,producing 850 000 000 pounds this year.[ ]A
• To see a young couple loving each other is no _________, but to see an old couple loving each other
• 已知关于x的方程2x+mx-2=3的解是正数，则m的取值范围为______．-数学
• 解分式方程：1-xx-2+2=12-x．-数学
• What I want toto teenagers is that being addicted to the Internet will to some extent do harm to bot
• The recorder ________ 500 yuan.But I don’t think it’s ________ that much.[ ]A.cost;worthB.worthy;cos
• On the long journey Peter ________ a most interesting guide.We all had a wonderful time.[ ]A.practis
• 解方程：xx+3+6x2-9=1x-3．-数学
• We did all that we could to________him________going abroad，but we failed.[ ]A．encourage；fromB．discou
• At first I________confidence to try it，but now I’m beginning to get the idea.And my marks haveimprov
• I don’t think it is difficult for a senior student to ________ the difference between “hurt” and “in
• Premier Wen Jiabao has strongly advised greater efforts to ease poverty, __________ the environment
• They decide to ____________ their holiday until next month.[ ]A.decay B.delay C.debate D.deliver -
• The new plant can't ____________ the cold weather,so the researchers are trying to deal with it
• If someone has toan action or policy, they are responsible for it, and may be required to explain it
• 有五张正面分别标有数字-1，0，2，4，5的不透明卡片，它们除数字不同外其余全部相同．现将它们背面朝上，洗匀后从中任取一张，将该卡片上的数字记为a，那么使得关于x的分式方-数学
• 若关于x的方程m-1x-1-xx-1=0有增根，则m的值是（）A．3B．2C．1D．-1-数学
• （1）23-1+27-(3-1)0（2）48-54÷2+(3-3)(1+13)（3）（x-3）（x+1）=5（4）xx-1+1x+1=2x2-1．-数学
• We must ________ our minds ________ a solution.[ ]A.apply;to findingB.apply;to findC.applied;for fin
• 解分式方程3xx2-1+x2-13x=2时，可设3xx2-1=y，则原方程可化为整式方程是（）A．y2+2y+1=0B．y2+2y-1=0C．y2-2y+1=0D．y2-2y-1=0-数学
• Will you________me a favour and carry this box？It’s too heavy for me.[ ]A．giveB．makeC．doD．bring-高三英语
• We tried to find a seat on the bus, but they were all_________.A．used upB．kept awayC．taken upD．given
• 解分式方程：x+2x+1-2=x+21-x．-数学
• —Do you know where the manager lives?—Yeah, but I have tothe telephone book for his address. [ ]A. s
• You can't predict everything．Often things don't as you expect．A．work outB．set outC．figure
• One way to species under' threat of extinction - whatever the cause - is to remove them to zoos
• Having heard wolves howling in the forest, Lala her walk up the path to the caves fearing that there
• When he realized the police had seen him, the man ______ the exit as quickly as possible.A．made offB
• 阅读理解题：一次数学兴趣小组的活动课上，师生有下面一段对话，请你阅读完后再解答下面问题：老师：同学们，今天我们来探索如下方程的解法：（x2-x）2-8（x2-x）+12=0．学生甲：老师，-数学
• 解方程（1）1x-2=1-x2-x（2）（x-3）2=3-x．-数学
• In order to increase their vote, they _________ another candidate a traitor to the country. [ ]A. an
• Nothing _____ after the terrible fire caused by the careless doorkeeper.[ ]A. left B. continuedC. ke
• Thank you so much. You ________ me from an embarrassing situation.[ ]A．rememberB．recoverC．rescueD．re
• The sandstorm_ for several days，which left a terrible sight across the west.A．kept offB．kept awayC．k
• -=1-九年级数学
• It took her some time to ________ from the shock. A．recoverB．hearC．learnD．receive-高一英语
• I ________ myself in my studies. In return, I gained great success.[ ]A．placedB．hadC．laidD．buried-高三
• In only 10 years, our province has been _____ into an advanced industrial province. [ ]A. transforme
• 如果1a+1b=1x，且a+b≠0，那么x=______．-数学
• The secretary is very careful and never ________ any little points.[ ]A. noticesB. deletesC. overloo
• A notice was________in order to remind the students of the changed lecture time.[ ]A．sent up B．given
• He ________ his country to the enemy and all the friends hated him.[ ]A. betrayedB. classifiedC. dis
• His disabled legs ________ him to a wheelchair all his life.[ ]A. condemnedB. fastenedC. appliedD. c