另求英语短文一个,在3a＾2-2ab-b＾2-( )=-5a＾2+ab-2b＾2的括号里,应填入的代数式是什么?另求一篇7,8句话_英语解答

另求英语短文一个,
在3a＾2-2ab-b＾2-( )=-5a＾2+ab-2b＾2的括号里,应填入的代数式是什么?
另求一篇7,8句话的英语小短文,生词越少越好,

人气：151 ℃　时间：2020-02-04 04:46:37

解答

1. 8a^2 - 3ab + b^22. My name is Jason,I'm a boy, I have a sister , she is very beautiful. My father is Doctor , and my mother is a nurses,I love my family.I have a good fiend named Jacky ,he likes pl...