抛物线y=x²-1999x+2000与X 轴两个交点的坐标为（a,0) (b,0)则（a²-1999a+2000）（b²-1999b+2000）的值是A -1999 B.-2000 C.1999 D 2000求（a²-2000a+2000）（b²-2000b+2000）的值

抛物线y=x²-1999x+2000与X 轴两个交点的坐标为（a,0) (b,0)则（a²-1999a+2000）（b²-1999b+2000）的值是A -1999 B.-2000 C.1999 D 2000求（a²-2000a+2000）（b²-2000b+2000）的值
抛物线y=x²-1999x+2000与X 轴两个交点的坐标为（a,0) (b,0)
则（a²-1999a+2000）（b²-1999b+2000）的值是
A -1999 B.-2000 C.1999 D 2000
求（a²-2000a+2000）（b²-2000b+2000）的值

抛物线y=x²-1999x+2000与X 轴两个交点的坐标为（a,0) (b,0)则（a²-1999a+2000）（b²-1999b+2000）的值是A -1999 B.-2000 C.1999 D 2000求（a²-2000a+2000）（b²-2000b+2000）的值
a,b均是方程x²-1999x+2000=0的根.
a²-1999a+2000=0
b²-1999b+2000=0
(a²-1999a+2000)(b²-1999b+2000)=0
备选答案没有一个是对的,这个题有问题.

题出错了吧

Nike W&K advertising agency company
director Chris Riley contrast from the plan, Nike and reebok company's
advertisement after comments: "you put the Nike and reebok advertising to 14
-1...

全部展开

Nike W&K advertising agency company
director Chris Riley contrast from the plan, Nike and reebok company's
advertisement after comments: "you put the Nike and reebok advertising to 14
-15 years of age kids look, they'll say: 'the reebok and playing my idea, and
they will use sports and health to market advertising."; but they speak about Nike AD
strategy is very different:' you peer, Nike that guys and spending cash! Really
aren't seeing that they manage their advertising money. "this implies that they
understand us, know this could use the traditional marketing Nike ads to steer
just how. Undoubtedly, Nike for youths some advertising market achieved
their goal, as well as the customer's identity is young, also it was their is a
industry for probably the most authoritative referees.Many people feel that Nike
advertisement communication art is "star offensive" and various picture, if
instances are. But that is not the case, have fundamental role is not
the type of communication but content,Cheap Air jordan III, is in advertising and consumers heart
-to-heart talk,Authentic Jordan Shoes! Nike advertisement communication can thus be described as a strong
resonance can let consumer good effect. Nike for sports fans in consumer
groups, the communication for the public of seeing and hearing in content
attempts this message: Nike transfer, along with you may be the sports world
"expert", everybody knows what went down in sports. So within the Nike ads show is really a
real objective sports world.When Nike company in the youth market and male
market foothold firmly,Cheap Air Jordan Shoes, instead give attention to fire attack women market.
Advertising creative solutions and also the mastermind of the two ladies cernet
Charlotte self way to discover the potential of women's inner world, with
as well as women's "dialogue" as a major means of communication. Advertising
works using comparative and intense, grayscale picture background in
relief is interwoven and among the "no", advertising words cordiality, rich
meaning, tone, and soft but full of a moving care and hope:That you experienced,
someone always feel that you can't do it's not effective at that. Within your
very existence,Jordan Shoes, someone always say you're not sufficient, additionally they strong
enough talent said you can't weight no constitution height: no, not make a
difference. They always say you can't, you very existence, they will quickly tens
of thousands of times, said firmly you not, if you don't prove that you simply
do.Advertising is printed in women's sex life fashion magazine. Advertising
words don't appear to be a sports goods shop sales appeals, similar to a lady
heart white, advertising reflects the Nike ads feature: real communication,
and the stimulation. The AD a huge success, advertising, the organization operator
room published the telephone has been ringing continually, lots of women
customers produce a phone call to make speak with say: "Nike AD changed my
life..." , "from now on I only purchase the Nike,Nike Air Jordan Shoes, since you understand me."
These answers are also reflected in sales, Nike women market sales growth
rate quick place their male market. 80 s female market Nike far reebok
conditions, Hudson radical change. The study indicates that, in the market
from the Nike brand and reputation has mentioned rate a lot more than the reebok.

收起