题目

分解因式：x－x3＝____________． 答案：【答案】x(1＋x)(1－x)【解析】直接提取公因式x，再利用平方差公式分解因式得出答案．x−x3＝x（1−x2）＝x（1−x）（1＋x）．故答案为x（1−x）（1＋x）．— I know how busy you are and naturally I wouldn’t like to _____too much of your time.— So, what’s the matter?A.take awayB.take offC.take upD.take in