八年级上册数学《因式分解》常考题型专项训练

八年级上册数学《因式分解》常考题型专项训练

  • 简介

    八年级上册数学 《因式分解》常考题型专项训练 3p2﹣6pq;       解:3p2﹣6pq =3p(p﹣2q) 2x2+8x+8 解:2x2+8x+8 =2(x2+4x+4) =2(x+2)2 x3y﹣xy      解:原式=xy(x2﹣1) =xy(x+1)(x﹣1) 3a3﹣6a2b+3ab2. 解:原式=3a(a2﹣2ab+b2) =3a(a﹣b)2 a2(x﹣y)+16(y﹣x) 解:a2(x﹣y)+16(y﹣x) =(x﹣y)(a2﹣16) =(x﹣y)(a+4)(a﹣4)

八年级上册数学《因式分解》常考题型专项训练