因式分解---------提公因式法下列从左到右的变形中,哪些是因式分解,哪些不是。(1))2(336223baabaa(2))1(232xxxx(3)))((22bababa33ba(4))3)(2(xx652xx(5)㎡=m×m(6)㎡+m=m³()二、用提公因式法因式分解(一)(1)332168baab(2)22mnnm(3)2515xxy(4)32241abba(5)abbaba2233(6)322316128ayyaya(7)ammama126323(8)xyyxyx2232用提公因式法因式分解(二)(1)2)()(baba(2))()(xyyyxx(3))(2)(62nmnm(4))(2)(32yxxy(5))()(3yxxyx(6)22)()(mnnnmm(7))(4)(6pqqqpp(8))(4)(122xyabyxba(9)))(())((yxbayxba用提公因式法因式分解(三)(1))(2)(72abybax(2))3()3(522xax(3)23)()(2baba(4)222)3()3(abxbax5))(3)(2pqbqpa(6)223)1(8)1(6xpxp(7)2)1()1(aaa(8)22)()()(bababa(9))1()1(2)1(3xcxbxa(10))32()23()1(2xxx用提公因式法因式分解(四)(1)2)())((yxxyxyxx(2)222)2()2(xaaaxa(3)32)2(2)2(4xbxa(4)))(())((abxyybayxx(5)xbaxacxcb)()()((6)))(2(2dcada))(23(2cdaab(7))1()1(2)1(3xcxbxa(8)2232)(30)(5xyxyyxyx(9)221)1(2aax三、计算题1012-10121655.30656553655.7202.207202.20291402.2002.2013四、求满足下列等式的x的值(1)0632xx(2)0)2(4)2(5xxx五、先因式分解,再求值已知:2,4abba,求:多项式1044222babba的值。