首页
试卷库
试题库
当前位置:
X题卡
>
所有题目
>
题目详情
解下列方程:3x2-2=0
查看本题答案
包含此试题的试卷
教案备课库《》真题及答案
点击查看
你可能感兴趣的试题
按要求解下列方程x2+x-3=0公式法
用合适的方法解下列方程4x2+3x-2=0
解下列方程0.4x2-0.8x=1
用适当的方法解下列方程3x-12=x+12
解下列方程x2-4x-12=0
解下列方程:3x2+x-2=0;
解下列方程:4x-32=25;
用配方法解下列方程x2-6x+3=0
解下列方程12-39-x=5x-4-77-x;
解下列方程3x+2x+3=x+14
解下列方程2x2﹣4x﹣1=0.
不解下列方程判断下列哪个数是方程的解
) x=1
x=-1
x =3
x=-3
解下列方程:x2+6x-10=0配方法.
用合适的方法解下列方程x2-3x=2-xx-3.
用配方法解下列方程2x2+1=3x
用配方法解下列方程3x2-x-2=0
解下列方程1-3x2+22x-24=0
用适当的方法解下列方程3x-12=x+12
用配方法解下列方程2x2+1=3x.
用适当的方法解下列方程4x2-4x-3=0
热门试题
更多
Theroomlookscleanandbecauseeverythingisputintheproperplace.
如图AB是⊙O的直径点C在⊙O上过点C的切线交AB的延长线于点D∠ACD=120°1求证AC=CD2若⊙O的半径为2求图中阴影部分的面积.
Paulcamejustattherighttimetooearlytoolate.A.either;or B.neither;nor C.both;and D.notonly;butalso
2002年4月闽粤港澳学界埠际田径比赛在龙岩市体育中心举行该市选手周兴礼代表福建队在中学男子6kg级铅球项目中打破了13.70m的纪录创造了13.98m的新纪录.若他破纪录的一掷用的力600N则他对铅球所做的功是
一个质量为50kg的人从一楼走上三楼他克服重力做功大约为J.
某学生在化简求值其中x=时出现错误解答过程如下原式=第一步=第二步=第三步当x=时原式==-第四步①该学生解答过程从第步开始出错的其错误原因是②写出此题的正确解答过程.
Lily:Lookatthosepeopledancingthere.Theyreallyenjoythemselves.Matt:Yes.36.It'sakindofnewdanceinChina.Lily:It'samazingthatsomanyoldpeopledancetogether.37..Matt:Theyorganizeitbythemselves.38.Theylookyoungerthantheirrealagesespeciallywhentheyaredressedinbeautifulclothes.Lily:Theydosquaredanceeveryeveningdon'tthey?Matt:39.Theycanalsomakealotofnewfriends.Lily:Ifsotheywon'tfeellonely.Couldyoutellmemoreaboutit?Matt:Certainly.Oldpeopleneedtocommunicatewitheachother.Andsquaredancehelpskeepthemhealthyandit'seasytolearn.Lily:Iguesstheydosquaredancethewholesummer.Matt:Right.40..Lily:Great!Let'sjointhemnow.Matt:OK.36.37. 38. 39. 40.
Idon'tlikethecolorofthisshirt.Couldyoupleasegivemeone?A.theother B. another C. others D.other
小明在水平面上用50N的水平推力加速推着一辆重120N的小车前进了10m小明的推力做功是J水平面对小车的支持力做功是J.
MymotheraskedmetoturntheTValittlesothatmyelderbrothercouldfocusonhishomework.
hesaysdonotbelievehim.Healwaystellslies.
BenIhopemyhandwritingisasgoodas.you
Lindawillneverforgetthewordsherfathertoldher.A.that B.who C. what D.where
I'mnotmuchofacriermostofthetime.ButrecentlywhenIwasreadingabookonaplaneIstartedcrying.OfcourseitcameasabigsurprisewhentearscameupnomatterhowhardItriedIwasn'tabletocontrolmyself.Ohnonotthisnow.Ithoughttomyself.Butevenasthethoughtenteredmybrain.Ifeltthefirsthotdropofsaltywatercomingdownmyface.IputmyheaddownhopingthatIcouldgoonreading.InfacttheharderItriedthemoretearspushedtheirwayoutofmyeyes.Youcouldguesshowsurprisedthemannexttomelooked.Idroppedmyheadinshame.HemustthinkIwascrazy.MaybeIcouldturntowardhimholdupthecoverofthebookandsayinmycryingvoice.'I'msorrysir.It'sjustareallygoodbook!'ButIdidn'tsayanything.InsteadIjustputmyheadbackagainsttheseatandletthetearsrun.DoyouknowwhatdecisionImadewhileIwascryingMydecisionwasthatitwasokayifhethoughtIwascrazy.I'dratherbecrazythanbethekindofpersonwhowouldn'tcrywhenthesituationcalledforitorwhowouldn'tletherselffeelanythingatall.I'vebeenthatgirlwhohasspentsomuchtimetryingtomakesurepeopledidn'tthinkIwascrazy.ButnowIdon'twanttobethatgirlanymore﹣﹣﹣thatboredandsadgirl.I'dratherbethisgirlwhoisabletoforgive原谅loveandactevenifitmeansbeingdisappointedorbeinghurtagainandagain. 61.Thewriterstartedcryingbecause.A.sheisusuallyacrierB.sheiskindofcrazyC.shewasmovedbythebookD.shefeltuneasyontheplane 62.Whentearscameupthewriteratfirst.A.thoughtdeeplyB.wentonreadingC.triedtocontrolherselfD.explainedtothemanbesideher 63.AstearsgotoutofhereyesthewriterdidNOT.A.dropherheadshamefullyB.thinkaboutothers'feelingsC.letherheadagainsttheseatD.saysorrytoanyoneinacryingvoice 64.Accordingtothepassageweknowthewriter.A.decidedtochangeherselfbravelyB.livedasadandboringlifeC.wouldn'tcryinanyterriblesituationD.wouldn'tletothersfeelanythingatall 65.Thepassagemainlytellsus.A.whythewritercriedhardontheplaneB.howthewritertriedtostopherselfcryingC.whatthewriterthoughtaboutwhileshecriedD.howthewriterovercameherselfanddecidedtochange
在探究影响液体压强大小的因素实验中小明用同一个压强计做了如图所示的实验.1比较实验甲乙可知:液体压强与有关.2图丙丁中U形管液面的高度差△h丙>△h丁你认为盐水和液体密度的大小关系是ρ盐水ρ液选填>=或<.3保持探头的位置不变向图丙中的大烧杯内再倒入一些水后液体未溢出则U形管两侧液面的高度差将选填变大变小或不变.4在图丁中当竖直向上缓慢取出探头时在探头露出液面之前探头所受的浮力选填变大不变或变小.
AccordingtotheFrenchgovernmentnotonlytwobelltowersbutalsothebodyoftheNotreDameCathedral巴黎圣母院intime.A.aresaved B.issaved C.weresaved D.wassaved
AnEnglishsayingsaysthatifyouwanttopleaseeveryonenobodywillbe.please
Afterwinningthematchtheplayersweresoexcitedthattheycouldspeak.A.probably B.hardly C.really D.clearly
awfulthenewsthattheforestfireinLangshanhascausedthirty-onedeathsis!A.Whatan B.Howan C.How D.What
EveryonehandedinhistestpaperJim.Hehasn'tfinishedityet.
Solikeanyotherbusinessyouhavetomakewise.choose
某小组利用图示装置来研究凸透镜成像的规律.1小明将各元件调整到如图所示位置时小组成员在光屏上都能观察到清晰的像这个像一定是的选填放大等大或缩小2当LED灯向左移动时光屏上的像变得模糊此时情况与选填近视眼或远视眼成因相似请完成其光路图.3小组成员小华在用同样的器材进行实验时发现光屏上出现的像只有中间清晰两侧却较模糊小明只对凸透镜进行了调整就在光屏上得到了清晰的像他的调整是选填左右适当移动凸透镜适当扭转凸透镜或更换焦距合适的凸透镜.
如图在平面直角坐标系中抛物线y=ax2-2ax+3a为常数与y轴交于点A过点A作AC∥x轴交抛物线于点C以AC为对角线作菱形ABCD若菱形的顶点B恰好落在x轴上则菱形ABCD的面积为
小明用如图甲所示的电路测量额定电压为2.5V的小灯泡L的额定功率.1为了测出小灯泡的额定功率请添加一根导线完成如图甲所示的实验电路的连接.2闭合开关S前滑动变阻器的滑片P应移至端选填A或B.3小明闭合开关S移动滑片P当小灯泡正常发光时电流表示数如图乙所示小灯泡L的额定功率为W他判断小灯泡处于正常发光状态的依据是
比较大小3用符号<>=填空
Thisismyfirsttimewinthefirstprizeinthemathcompetition.
中华文化历史悠久包罗万象某校为了加强学生对中华传统文化的认识和理解营造校园文化氛围举办了弘扬中华传统文化做新时代的中学生的知识竞赛以下是从七年八年两个年级随机抽取20名同学的测试成绩进行调查分析成绩如下七年7688936578948968955089888989779487889291八年74979689987469767278997297769974997398741根据上面的数据将下列表格补充完整整理描述数据说明成绩90分及以上为优秀80~90分为良好60~80分为合格60分以下为不合格分析数据2为调动学生学习传统文化的积极性七年级根据学生的成绩制定了奖励标准凡达到或超过这个标准的学生将获得奖励.如果想让一半左右的学生能获奖应根据来确定奖励标准比较合适.填平均数众数或中位数3若八年级有800名学生试估计八年级学生成绩优秀的人数.
Theboyistooyoungtodress.Heneedshismother'shelpeverymorning.
热门题库
更多
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
教案备课库
高一下学期数学
教案备课库
高一上学期数学
高一上学期化学
教案备课库
教案备课库
教案备课库