已知x=3-2，求代数式(x+3x2-3x-x-1x2-6x+9)÷x-9x的值．-数学

更多内容推荐

• 计算：[23x-2x+y(x+y3x-x-y)]÷x-yx．-数学
• The Internet has become increasingly popular, ______ us to see as well as to hear all kinds of prog
• It’s dangerous if you have the fire _____ all night long.A．to burnB．burnC．burnedD．burning-高三英语
• 化简：（1）1x-3-6x2-9；（2）(x2-xy)÷x2-2xy+y2y•x2-y2x2y．-数学
• 计算：（1）1a2-b2÷(1a+b+1a-b)；（2）a-1a÷(a-2+1a)．-数学
• 已知a2-3a+1=0，则a+1a=______．-数学
• The poor little boy ______ by his heartless parents was seen begging in the street.A．abandoningB．to
• Have you ever dreamed of __________ such a good chance for further education abroad?A．there isB．ther
• 化简：[a2-b2a2+2ab+b2+2ab÷（1a+1b）2]•2a2-b2+2ab-数学
• --- I think what he has done for the company deserves__________ at the meeting. --- I can’t agree m
• Of the three statements he has suggested __ the heating problem, I think the last one is the best. A
• ____ more attention, the trees could have grown better. A．GivenB．To giveC．GivingD．Having given-高二英语
• And there, almost _____ in the big chair, sat her little brother, who never had to be told to keep
• 先化简，再求值：（1）x22-x+4x-2，其中x=3-2；（2）(a-aa+1)÷a2-2aa2-4•a+1a2+3a+2，其中a=2-2．-数学
• Principal White has been working in the school for about 20 years, ____all his energy to teaching an
• ---What do you think of his talk on Information Technology?---Oh, excellent. It's worth _______
• 计算：(1x-1+1x+1)÷3x1-x2=______．-数学
• 观察下列各式：22-4+66-4=2，55-4+33-4=2，77-4+11-4=2，1010-4+-2-2-4=2，依照以上各式形成的规律，在括号内填入正确的数______，使等式2020-4+()
• 先化简，再求值：32x-1x+y(x+y2x-x-y)，其中x=2010，y=2011．-数学
• 化简：x2-4xx2-8x+16，其中x=5．-数学
• __________ to train his daughter in English, he put an advertisement like this in the paper, ______
• _________ more customers, many companies prefer to spend a lot of money in advertising. A．AttractB．A
• Everyone is looking forward to seeing the plan ________ in the near future. A．carrying outB．carry ou
• ________ in the traffic jam, she failed to catch the train, which mader her upset. A．Catching B．Havi
• You can make yourself _____ in English pretty well if you keep on speaking the language.A．understand
• -- What made your skin look so terrible? --_______ to the sunlight for a long time. A．Because it was
• 若1x+1y=2，求x+2xy+y3xy-2x-2y=______．-数学
• 先化简，再求值：(3x+4x2-1-2x-1)÷x+2x2-2x+1，其中x=2．-数学
• 有这样一道题，“计算y=x2+2x+1x2-1÷x+1x2-x-x的值，其中x=2008”，甲同学把“x=2008”错抄成“x=2080”，但是他的计算结果也是正确的，你说这是怎么回事呢．-数学
• 已知，a=-1，b=2，则式子ba+ab=______．-数学
• — Have you watched Gravity, _______ the best film in 2013?—Yes. It is a survival story _________ in
• 先化简，再求值：x2-1x+2÷(1x+2-1)，其中x=13．-数学
• 若x=30，那么xx-3-x+6x2-3x+1x的值为______．-数学
• 计算x-2x2÷(1-2x)的结果为______．-数学
• ________energy, we turn off the lights for Earth Hour on the last Saturday in MarchA．SavingB．To sav
• in her most beautiful skirt, the girl tried to make herself at the party. A．Dressed; noticingB．dress
• He often looks away from people when talking, and I can hardly stand______like this.A．his to behave
• 已知n=1n，求（mn-n2）÷m2-2mn+n2mn•mn-m2m2的值．-数学
• 化简x+1x-1-x2-2xx2-1÷x2-x-2x2+2x+1的结果是______．-数学
• 计算：(1+1m-1)÷mm2-1．-数学
• 先化简代数式x2-2xx2-1÷(x-1-2x-1x+1)，然后选取一个你喜欢的数代入，求原代数式的值．-数学
• 计算(1+yx)÷(1-yx)的结果是（）A．x+yx-yB．x-yx+yC．1D．-1-数学
• 先化简，再求值：x3-x2x2-x-1-x2x+1，其中x=2．-数学
• 计算a-1a÷（a-1a）的正确结果是（）A．1a+1B．1C．1a-1D．-1-数学
• Nankai University,_______ in 1919, has a history of more than 94 years. ( )A．foundB．foundingC．founde
• ---It is said that China will declare war on Japan soon. ---______, China will never be the first c
• 已知1x-1y=3，则2x-2y+xyx-2xy-y的值为______．-数学
• When first ______ to the market, these new products in their company enjoyed a great success.A．Intro
• ______ to as much English as possible is a good way to learn English well.A．ExposedB．Being exposedC．
• 求值：（1）1+xx2+x-2÷x2-1x+2，其中x=12；（2）y3-y(xy+1)2-(x+y)2÷(x+y)yx+1，其中x=-11，y=112．-数学