计算或解方程：（1）计算：8a-2b2•（2a2b-2）-3（2）计算：(13-12)×|-6|+(12)-2-(π-3)0（3）解方程：2x-1=4x2-1．-数学

更多内容推荐

• -----How far apart do Tom and Jack live?-----______I know, they live in the same neighborhood.A．As
• The Internet has __________ big changes in the way we work.A．brought about B．brought inC．brought upD
• Near the table ______ a poor dog, which desired to satisfy his hunger with something ______ fell fro
• It may take a few week1s for your application to be ___.[ ]A. processedB. doneC. read D. watched-高二英
• 一项工程，甲单独做需要6天完成，乙单独做需要4天完成，求两人一起做需要的天数，若设两人一起做需要x天完成，则所列方程是…………………………………………………【】A．B．６＋４＝xC．6+4=D．-八年
• When the thief found the police had already him ,he ran away quickly.A．knownB．staredC．realizedD．spot
• 为迎接2011年“大运会”的到来，我市对20千米长的北环大道进行了改造，为了尽量减少施工对交通的影响，实际施工时平均每天比原计划多改造100米，结果提前10天完成改造工程，若-七年级数学
• The nurse a bandage to the soldier's wound.[ ]A. usedB. putC. appliedD. laid-高二英语
• （8分）某个体商贩在一次买卖中同时买进两件上衣，每件都以a元出售，若按成本计算，一件盈利25%，另一件亏本25%，那么该商贩在这次买卖过程中是赚了还是赔本了？赚或赔多少？-七年级数学
• 方程xx-2+12-x=12的解是______；若关于x的方程ax+1x-1-1=0无实根，则a的值为______．-数学
• 若关于x的方程m-1x-1-xx-1=0有增根，则m的值是______．-数学
• The child was badlyby other people in the village.[ ]A. treatedB. consideredC. taken care ofD. looke
• The policeman stop him when he was driving home and ________him of speeding.A．chargedB．accusedC．warn
• The new policy on protecting environment was____.[ ]A. approvedB. pastC. receivedD. accepted-高二英语
• Her mother does notof her going to study in the United States alone.[ ]A. admitB. agreeC. proveD. ap
• 当=时,关于的方程会产生增根.-八年级数学
• Tom opened a bookstore in NO.3 Middle School, but it closed down.A．ever sinceB．just thenC．before lon
• 解方程：。-七年级数学
• 已知分式方程x+13-|x|=a3+x有增根，则a=______．-数学
• 10. The actor ______ us greatly with his wonderful performance and excellent English.A．movedB．intere
• Don't worry!We are well prepared to deal with all of the problems that may __________.[ ]A．rise
• There is ____ milk left now. I have to go and buy some.A．not a littleB．not a bitC．a little ofD．not a
• 解分式方程：2xx-1-11-x=1-数学
• 解分式方程2x-1+x+21-x=3时，去分母后变形为（）A．2+（x+2）=3（x-1）B．2-x+2=3（x-1）C．2-（x+2）=3（1-x）D．2-（x+2）=3（x-1）-数学
• (8分)徒骇河风景区建设是今年我市重点工程之一．某工程公司承担了一段河底清淤任务，需清淤4万方，清淤1万方后，该公司为提高施工进度，又新增一批工程机械参与施工，工效提高-七年级数学
• When she came several days later, she found that all things still _______ where she had _______ them
• 分式方程1x-2=0的解是______．-数学
• 若关于x的分式方程xx-1=3a2x-2-2有非负数解，则a的取值范围是______．-数学
• I don't ruin myself for my friends; I don't __________ your praise. I care greatly for mys
• 设关于x的分式方程a-22-x=a-2x-2有无穷多个解，则a的值有（）A．0个B．1个C．2个D．无穷多个-数学
• 解分式方程：2xx+2-3x-2=2．-数学
• 若关于x的方程2kx-1-xx2-x=kx+1x只有1个解，则k=______．-数学
• 分式方程有增根，则m的值为[]A.0和3B.1C.1和-2D.3-九年级数学
• With all the tasks finished ahead of time, she felt a great weight her mind. A．picked upB．ended upC
• —You can ask Jack to help you. I’m busy now.—He is too short to __________ the book on the shelf.[ ]
• Last Sunday a few of us arranged to meet in town, but Jenny didn’t _______.A．give upB．make upC．turn
• 分式方程xx-3=x+1x-1的解为（）A．x=1B．x=-3C．x=3D．x=-1-数学
• 解分式方程x3+x-22+x=1时，去分母后可得到（）A．x（2+x）-2（3+x）=1B．x（2+x）-2=2+xC．x（2+x）-2（3+x）=（2+x）（3+x）D．x-2（3+x）=3+x-数
• 已知关于x的方程3x+n2x+1=2的解是负数，则n的取值范围为______．-数学
• 解方程：-八年级数学
• 方程：的解为[]A.2B.1C.-2D.-1-八年级数学
• 下列式子不属于分式方程的是（）A．1x-1+2xx+1=2B．xx+1=12C．x+13+1=2x-12D．1x+x=52-数学
• We tried to ____ his doubts and let him tell the truth.A．reviewB．removeC．viewD．rebuild-高一英语
• （11·柳州）（本题满分8分）某校为了创建书香校园，去年又购进了一批图书．经了解，科普书的单价比文学书的单价多4元，用1200元购进的科普书与用800元购进的文学书本数相等．（1）求-七年级数学
• He was very careless in his work, so he really __________ to be fired.[ ]A. disagreedB. deservedC. h
• I will not wait for him for a second – he may have something else to do, so he could not _____ here.
• The student _____ from the training so much that he was _____ the first prize in the event.A．benefit
• — My daughter has been _______ to Harvard University.— Congratulations.A．required B．intendedC．admitt
• 方程的解是（）。-九年级数学
• 若方程6(x+1)(x-1)-mx-1=1有增根，则它的增根是（）A．0B．1C．-1D．1和-1-数学