题目

(本题满分8分)将下列各式分解因式:(1) ;(2) 答案:【答案】(1);(2)【解析】本题需要学生理解因式分解的基本概念,熟练掌握乘法公式,有公因式的先提公因式,然后运用乘法公式和十字相乘法进行因式分解.解:(1)原式= (2分)= (4分) (2)原式= (6分) = (8分)----I have a piece of good news for you. You’ve been elected as monitor in our class.---- ______ That’s great!A.Congratulations!B.Good idea!C.Oh, really?D.What about you?
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