填空题：若a2(就是a的平方)+b2-4a+2b+5=0,则ab的值为__

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填空题：若a2(就是a的平方)+b2-4a+2b+5=0,则ab的值为__
若X2-4XY+5Y2-2Y+1=0,那么Y的X次方的值为___
一次函数Y=X+5的图像讲过点P(a,b)和Q(c,d)计算a(c-d)+b(d-c)=___
数2的24次方-1在0-10之间的因数有____
若x2+x+1=0则X3+2X2+2X+3=__
因式分解：7X的n+1次方-14的n次方+7的n-1次方（n是大于1的整数）
已知矩形的周长为16cm 它的两边a、b都为整数且满足a-b-a2+2ab-b2+2=0求其面积
求证：81的7次方-27的9的次方-9的13次方能被45整除
已知：a=2009X+3,b=2009X+2 C=2009x+1 求a2+b2+c2-ab-bc-ac
英语：根据句意和所给首字母提示完成单词:
1.My dream is to have a big c______and I will be a boss.
2.Yuan Longping is a great s_______.
3.Robots can help us do s_______and boring jobs over and over again
4.Cheng Wei looked for his chair e_____yesterday but he didn't find it.
5.New robots will have many different s_______in the future
6.It's 11 o'clock now and they have a_______ had lunch
7.He was b______with his job.
8.Come as quickly as p_________,please
9.Light travels faster than s__________
10.It will be u__________for her to have no news of her family
就这么多了- - 直接答案也行了.

英语首字母填空 3 题 simpie 在八下第一单元的reading的倒数的五行
7题 bored 因为bored是厌烦的,厌倦的意思
祝你英语学得更好!

填空题：若a2(就是a的平方)+b2-4a+2b+5=0,则ab的值为__ 若a+b=4，则a2+2ab+b2的值为______．若a+b=0，ab=11，则a2-ab+b2的值为（　　）若实数a,b满足条件（a/b）+（b/a）=2,求(a2+ab+b2)/(a2+4ab+b2)的值若a-b=8，a2+b2=82，则3ab的值为（　　）已知a2+b2=2，a+b=1，则ab的值为______．已知a+b=5，ab=-2，那么a2+b2的值为（　　）已知两实数,a,b满足条件a2-3ab+2b2=0,求a：b的值字母后面的2为平方已知a2-b2=12,则a2+b2+ab的最小值等于（注：a2是指a的平方.b2是指b的平方）若a2+ab=5，ab+b2=4，则a2+2ab+b2的值为______． 1.已知a·b2=6,求ab（a2·b5-a·b3-b）的值.（a2就是a的平方的意思）若ab≠1,且有5a2(a的平方) + 2001a + 9 = 0及9b2(b的平方) + 2001b +5 = 0,则