1、整式的乘除因式分解精选一解答题(共12小题)1计算:; (y5)23(y)35y2 (ab)64(ba)3(ba)2(ab)2计算:(2x3y)28y2; (m+3n)(m3n)(m3n)2;(ab+c)(abc); (x+2y3)(x2y+3);(a2b+c)2; (x2y)2+(x2y)(2yx)2x(2xy)2x(m+2n)2(m2n)2 3计算:(1)6a5b6c4(3a2b3c)(2a3b3c3) (2)(x4y)(2x+3y)(x+2y)(xy)(3)(2x2y)233xy4 (4)(mn)(m+n)+(m+n)22m24计算:(1)(x2)8x4x102x5(x3)2x (2)3
2、a3b2a2+b(a2b3ab5a2b)(3)(x3)(x+3)(x+1)(x+3) (4)(2x+y)(2xy)+(x+y)22(2x2xy)5因式分解:6ab324a3b; 2a2+4a2; 4n2(m2)6(2m);2x2y8xy+8y; a2(xy)+4b2(yx); 4m2n2(m2+n2)2; (a2+1)24a2; 3xn+16xn+3xn1x2y2+2y1; 4a2b24a+1; 4(xy)24x+4y+1;3ax26ax9a; x46x227; (a22a)22(a22a)36因式分解:(1)4x34x2y+xy2 (2)a2(a1)4(1a)27给出三个多项式:x2+2x1
3、,x2+4x+1,x22x请选择你最喜欢的两个多项式进行加法运算,并把结果因式分解8先化简,再求值:(2a+b)(2ab)+b(2a+b)4a2bb,其中a=,b=29当x=1,y=2时,求代数式2x2(x+y)(xy)(xy)(x+y)+2y2的值10解下列方程或不等式组:(x+2)(x3)(x6)(x1)=0; 2(x3)(x+5)(2x1)(x+7)411先化简,再求值:(1)(x+2y)(2x+y)(x+2y)(2yx),其中,(2)若xy=1,xy=2,求x3y2x2y2+xy312解方程或不等式:(1)(x+3)2+2(x1)2=3x2+13(2)(2x5)2+(3x+1)213(x210)