解方程：（1）x-2x+2-16x2-4=4x-2+1（2）（x+2）（2x-1）=2（3）2x2-4x+1=0．（配方法）-数学

更多内容推荐

• As the housing price goes up rapidly, many young couples don’t know what toit.A．do withB．deal withC．
• 分式方程的解为（）A．1B．-1C．-2D．-3-八年级数学
• 请阅读某同学解下面分式方程的具体过程．解方程1x-4+4x-1=2x-3+3x-2．1x-4-3x-2=2x-3-4x-1，①-2x+10x2-6x+8=-2x+10x2-4x+3，②1x2-6x+8
• All the students in this school are required to________at least two lectures on how to study every m
• Sorry to ____ your speech for a few minutes. [ ]A. interrupt B. stopC. keep D. prevent -高一英语
• Changing the design of a new product may ______ the risk of its production in the market. A．bring ab
• 分式方程12x-3=1的解为______．-数学
• 下列方程中分式方程有（）个．（1）x2-x+1x；（2）1a-3=a+4；（3）1x-x=3；（4）20x+y-10x-y=1．A．1B．2C．3D．以上都不对-数学
• In order not to let the others hear what he said, he ________ the news to me. [ ]A. shoutedB. toldC.
• 阅读理解解分式方程＋=3时，小云用了如下的方法：解：设="y"，则原方程可化为y+2y="3"解这个整式方程得y=1由=1去分母，得x+1=1，∴x=0经检验x
• We early to avoid the traffic，and it took us only half an hour to get here．A．turned outB．turned upC．
• The inspector ____ his fingers over the sheet of newspaper. There were some marks on the surface of
• Yesterday our car got ______ halfway; fortunately we managed to get it ______ finally.A．struck; work
• When the poor old lady tried to ______ the cup on the shelf to have a drink, she ______.A．reach for;
• Changing the design of a new product may ____ the risk of its production in the market．A．bring about
• 若方程有增根，则．-八年级数学
• 分式方程32x=1x-2的解为（）A．x=5B．x=6C．x=3D．x=4-数学
• 满足方程2x+2=3x-2的解为______．-数学
• ---Canyourfactoryreallyafford____foodforthepeopleinthefloodedarea?---Ibelievewecanbecausewehave____w
• 若关于x的方程m-1x-1=2的解为正数，则m的取值范围是______．-数学
• There is too much noise outside; I can't____ my attention on my book.[ ]A. consultB. connectC.
• —How did you like Nick's performance last night?—To be honest, his singing didn't ________
• —What are you doing,my dear?—I am ________ for my glasses. I remember I have put it on the bookshelf
• Having quarreled seriously three times, they have ______ and become best friends again.A．turned upB
• 小明和小华要到离学校15千米的图书馆看书．小明先骑自行车从学校出发，15分钟后，小华乘公交车从同一地点出发，结果两人同时到达图书馆．已知公交车的速度是自行车速度的1.5倍-七年级数学
• 解分式方程．(1)(2)-八年级数学
• m取时，方程会产生增根．-八年级数学
• Why don't you ____ it to his attention that you are too busy to go on working?A．payB．fix C．brin
• 当m=______时，关于x的方程xx-5=mx-5+2会产生增根．-数学
• 解方程：．-九年级数学
• He liked the article in the newspaper so much that he ______ his own work and translated it into Eng
• The young nurse was very nervous when she in her first operation.[ ]A. resistedB. insistedC. assiste
• 解方程：（1）7x-2=5x（2）x-8x-7-17-x=8．-数学
• 若方程2a+x+ax-1=0无解，则a的值为（）A．1B．-12C．12或-1D．-12或-1-数学
• --- Why were you late for the class, Jenny?--- Oh, my clock must be running slow, and it needs ____.
• Jack ______ the bus as soon as it stopped; and then to his joy he met an old friend of his on that b
• 方程的解是（）A．x=1B．x=-1C．x="2"D．x=-2．-九年级数学
• 若分式的值为0，则的值为.-七年级数学
• 函数，当x＝3时，y＝_______.-九年级数学
• No sooner ____ down on bed ____the telephone rang．A．had he lain, thanB．had he lied, when C．did he li
• Passengers are permitted ______ only one piece of hand luggage onto the plane.A．to carryB．carryingC．
• Her husband had ____ a large business during his lifetime.A．built upB．checked outC．picked outD．gone
• You can’t expect a baby toyour existing routine.A．fit in withB．fit onC．fit up withD．fit in-英语
• He____ the report on the matter to the committee.[ ]A. told B. handedC. submitted D. spoke-高二英语
• 若关于x的方程=3有增根，则m的值为（）。-八年级数学
• 若方程xx-3-2=kx-3有增根，则k=（）A．-2B．0C．1D．3-数学
• 解分式方程：（本题6分）-八年级数学
• 关于x的方程的解是正数，则实数a的取值范围是__________.-八年级数学
• 若方程：+1=有增根，则=；-八年级数学
• 甲、乙两人各自安装10台仪器，甲比乙每小时多安装2台，结果甲比乙少用1小时完成安装任务。如果设乙每小时安装x台，根据题意得（）A．；B．；C．；D．-八年级数学