题目

下列关于x的二次三项式中,一定能在实数范围内因式分解的是( ) A . x2﹣x﹣m B . x2﹣mx+1 C . x2+x+1 D . x2﹣mx﹣1 答案:DThe pot-bellied pig is too big to sleep in the house, _________I have to make her a big one.A. or B. so C. but
数学 试题推荐