问题
解答题
已知代数式x2+px+q,当x=﹣1时,它的值为﹣5;当x=3时,它的值是3,求p与q的值.
答案
解:据题意得.
解得p=0,q=﹣6.
已知代数式x2+px+q,当x=﹣1时,它的值为﹣5;当x=3时,它的值是3,求p与q的值.
解:据题意得.
解得p=0,q=﹣6.
Some people succeed,while others may not.This is because some people possess certain qualities,which others do not. The first thing you must remember is that in order to succeed,you must be optimistic(乐观的).If you do not expect to win,you will not try as hard as those who do expect to win.You also need to have a clear aim and a reason for doing something because motivation(动力)is a key to achieving success.If you do not have an aim,then you will not be motivated to work hard and put your performance under the microscope to make sure that every detail is right. Another quality that helps people succeed is creativity(有创造力)-thinking about things in a different way and wondering how others would do the same thing.Think about some successful people you know.They might be successful with a little creativity,but the most successful people are the most creative ones. Reading is another to success,as it will help you learn about how other people have achieved success.If you want to learn how to set up a successful business,you should read books about people like Bill Gates and Jerry Yang,who have achieved amazing success in their areas of business. Practicing is also important if you want to succeed because practice makes perfect.Practise every day at whatever career you are in,and by doing so,you will see yourself,your business and your self-confidence begin to grow.If you feel confident about what you do,this confidence will make other people believe in you as well.Your colleagues will be happy to work with you,and your boss will give you more responsibility.Finally if you are a successful person,you will be able to look people in the eye and smile confidently. Success is yours for the taking! Cheers! Title (76)_________
|