1.单选题- (共5题)
与是方程
的两个根，且
，则m的值为（ ）2.选择题- (共2题)
In China, there're many different kinds of food. Some of them are very popular. The real Chinese food is dumplings. Now let's talk about them, OK?
Everyone in China likes dumplings very much, and there are many different kinds of dumplings. Some have meat and vegetables in them, others have sugar, eggs and so on. I like dumplings with vegetables and pork better than any other kind.
Usually people make dumplings at home. If you have no time to make them, you can buy them from any supermarket. Then you take them home and eat them with vinegar.
The Spring Festival is very important in China. When it comes, we make dumplings, usually we put a coin(硬币) in a dumpling. If one eats the dumpling with the coin in it, he or she will be lucky in the year.
In the old days, people couldn't often eat dumplings, because they were very poor. Now our country is becoming stronger and stronger, and our people are richer and richer. We can eat them very often.
Now tell me, do you like dumplings?
Welcome to China, and we'll invite you to eat the real Chinese food —dumplings.
3.填空题- (共2题)
，
是关于x的一元二次方程x2+（2m+3）x+m2=0的两个不相等的实数根，且满足
=﹣1，则m的值是____．4.解答题- (共5题)
，求方程的另一个根及m的值．（1）若（x1-1）（x2 -1）=28，求m的值；
（2）已知等腰△ABC的一边长为7，若x1，x2恰好是△ABC另外两边的边长，求这个三角形的周长．
是关于x的一元二次方程
的两个不相等的实数根，且满足
，求m的值.
成立？若存在，求出这样的k值；若不存在，请说明理由．-
【1】题量占比
单选题:(5道)
选择题:(2道)
填空题:(2道)
解答题:(5道)
-
【2】：难度分析
1星难题：0
2星难题：0
3星难题：0
4星难题：1
5星难题：0
6星难题：5
7星难题：0
8星难题：5
9星难题：1