化简求值：a2+4a+4a+1÷(a-1-3a+1)，其中a=3．-数学

更多内容推荐

• 化简求值：当x=﹣2时，=（）-八年级数学
• As a matter of fact,his remarks left me ______ about his real purpose. A．wonderedB．wonderC．to wonder
• The girl ________at the party yesterday is missing today.A．referring to B．refer toC．referred toD．to
• 若x=2005，则（）÷=（）。-八年级数学
• Would you be ______ to do me a favour, please?A．so kind as .B．too kindC．as kind asD．enough kind-英语
• ________not to miss the lecture at 2 p.m,Wang Dong left in a hurry.A．RemindingB．To remindC．RemindedD
• 先化简，再求值：(1+1x-2)÷(x2-2x+1x2-2x)，其中x=3．-数学
• He missed _______ when he was in Africa.A．killingB．to be killedC．to killD．being killed-高一英语
• 先化简再计算：x2-y2x-y-2x+y，其中x=3，y=2．-数学
• 先化简，再求值：(3aa+1-aa+1)•a2-1a，其中a=7+1-数学
• Canada is a country _____many different nationalities as well as one with foreign immigrants _____ t
• 先将x2-2xx+1•(1+1x)化简，然后请你自选一个合理的x值，求原式的值．-数学
• 先化简后求值：（a-b+4aba-b）（a+b-4aba+b），其中a=32，b=12．-数学
• 先化简，再求值：(x+2-5x-2)÷x-3x-2，其中x=5-3．-数学
• How to keep the homeless __________ with food and clothing is still under discussion．A．supplyingB．su
• There is a small group of words which even some native speakers and writers of English find ______.A
• _____ in every aspect of his company’s business, Paul made himself busy day and night.A．Being involv
• The chair looks rather hard, but in fact it is very comfortable to _______.A．sittingB．sit onC．sitD．
• 先化简再计算：÷（x-），其中x是一元二次方程x2-2x-2=0的正数根.-九年级数学
• _____for the damage to the house , Daisy had to pay a heavy fine. A Blaming B blamed C To blame D To
• On his way home, he found a wallet ____ on the ground, which he picked up and ____ in his schoolbag.
• 33．The famous singer is traveling across the country,_________her new album.A．classifyingB．expanding
• 先化简，再求值：a2-2ab+b2a2-b2÷（1a-1b），其中a=1+2，b=1-2．-数学
• Some people are sitting on the grass; others are walking along the lake, ______ .A．chatting and to l
• 已知x2+3x-1=0，求x-1x和x2+1x2的值．-数学
• 若ab=2，则a2-ab+b2a2+b2=______．-数学
• The police have collected some information the murder.A．connected toB．connected withC．connecting wit
• “Where Are We Going? Dad” is a Chinese reality TV show broadcast on Hunan Television, _____ 75 milli
• 已知10个数x1，x2，x3，…，x10中，x1=2，对于整数n＞1，有(n+1)xn=nxn-1，则x1x2=______，x2x3…x10=______．-数学
• People all around the world have been doing as much as they can ________the people in Afghanistan.A．
• ___ nice, the food was sold out soon.A．TastedB．TastingC．To tasteD．Being tasted-英语
• What difficulty will you have _______ people when you stay in a foreign country?A．understandingB．und
• 先化简再求值：a2-b2a2b-ab2÷(1+a2+b22ab)，a=7-11，b=-4+211．-数学
• 若b+1c=1，c+1a=1，求ab+1b的值．-数学
• 先化简：(3xx-2-xx+2)÷2xx2-4，再对x取一个你喜欢的数值，求出此代数式的值．-数学
• _________ himself with confidence, the young man went to the manager’s office bravely.A．Having equi
• 计算（1）a+9b3ab-a+3b3ab（2）x2-1(x-1)2÷1x-1•1x+1（3）先将代数式：（x+2x-2+4x2-4x+4）÷xx-2化简，然后请你选取一个你喜欢且又合理的x的值，再求原
• 已知：x=2+3，y=2-3．求：(x+1y)(y+1x)的值．-数学
• I really appreciate ____ time to relax with you on this nice island.A．haveB．havingC．to haveD．to havi
• Whenever he was asked why he was late for class, he would answer carelessly, always ______ the same
• John rushed out in a hurry, ___________ the door ____________.A．leaving; unlockedB．leaving; unlockin
• When______on rocks, the plant grows to a bush,_____broad leaves and large flowers.A．growing;havingB．
• 先化简，再求值：x2-y2x+y-2（x+y），其中x=3，y=-13．-数学
• Everyone here will thank the firefighters for the things they did to prevent fires ________the envir
• There are some tall trees in our campus, some ________ more than forty meters.A．measureB．measuredC．m
• __________ from heart trouble for years Mr. White has to take some medicine with him wherever he goe
• Here is a ticket for the exhibition. Whom would you rather _____ with you, Jack or Bob? A．go B．have
• Mr Jackson was very angry to find the car he had had _____ yesterday broke down again.A．to repairB．i
• 计算或化简：（1）1x-1-xx2-1．（2）(1a+1+1a-1)÷1a+1+1．-数学
• In the darkness, she felt ________, but when she turned around, nobody was there.A．to followB．follow