1、整式乘除与因式分解专项练习知识网络归纳整式的乘法一、整式综合计算:1、幂运算:(1)(3a2b3c)3 (2) (3)(a2b)3a3= (4) (5) (6) (7) (8) (9) (10)820050.1252006 (11)若,则 (12)已知4x=2x+3,则x= (13)如果,则 (14)若3m3n1,则mn_(15)已知x4y30,则 (16)已知,求n的值。(17)已知:,求m的值(18)0. 2520094200981000. 53002、单项多项混合运算:(1)(2)(3)(4)(5) (6)先化简,再求值:,其中3、乘法公式运算:(1)(3x2)(3x2);(2)(b2a
2、)(2ab)(3)(x2y)(x2y)(4) (x2)(x3) (5)(y2)(y2)(y1)(y5)(6)(x3)2(x2)(x2)(7)(ab)(a2b)(a2b)(ab)(8)5x(x22x1)(2x3)(x5) (9)42921712(10)已知,求(1);(2)(11)若(x2pxq)(x22x3)展开后不含x2,x3项,求p、q的值(12)已知 (ab)27, (ab)213, 试求a2b2和ab的值; (13)已知:x2y24x6y130,x、y均为有理数,求xy的值(14)已知5x2-2xy+y2+4x+1=0,求x、y的值(15)当a,b为何值时,多项式a2b24a6b18有
3、最小值?并求出这个最小值(16)已知a1990x1989,b1990x1990,c1990x1991,求a2b2c2abacbc的值(17)若a,b,c是三角形的三边,且满足关系式a2b2 c2abacbc0,试判断这个三角形的形状(18)已知,求的值(19)已知x2y225,xy7,且xy,求xy的值(20)已知: 求:的值(21)已知,求、的值(22)已知,试求的值(23) (24)已知,则 (26)已知:x23x10 (27)已知,则(28)如果(2a+2b+1)(2a+2b-1)=63,那么a+b的值为 (29)已知xy1,那么x2xyy2的值为 (30)已知m2m10,则m32m22
4、004 (31)已知:ab8,ab16c2,求(abc)2002的值2、分解因式:(1)x34x(2)8a42a2(3)m2n23m3n(4)x22xyy24(5)2x25xyx (6)2x2y5xy2xy(7)-4x46x32x2(8)4x4y6x2y32xy4 (9)2a(x2y)3b(x2y)(10)2a(x2y)3b(2yx)4c(x2y) (11)4(a2b)29(2ab)2(12)9(a+b)26(a+b)1 (13)(14)(15)m2(pq)pq(16)a(abbcac)abc;(17)x42y42x3yxy3(18)abc(a2b2c2)a3bc2ab2c2;(19)a2(b
5、c)b2(ca)c2(ab)(20)(x22x)22x(x2)1;(21)(xy)212(yx)z36z2(22)x24ax8ab4b2;(23)(axby)2(aybx)22(axby)(aybx)(24)(1a2)(1b2)(a21)2(b21)2;(25)(x1)29(x1)2(26)4a2b2(a2b2c2)2;(27)ab2ac24ac4a(28)x3ny3n;(29)(xy)3125(30)(3m2n)3(3m2n)3;(31)x6(x2y2)y6(y2x2)(32)8(xy)31;(33)(abc)3a3b3c3(34)x24xy3y2;(35)x218x144(36)x42x28;(37)m418m217(38)x52x38x;(39)x819x5216x2(40)(x27x)210(x27x)24;(41)57(a1)6(a1)2(42)(x2x)(x2x1)2;(43)x2y2x2y24xy1(44)(x1)(x2)(x3)(x4)48;(45)x2y2xy(46)ax2bx2bxax3a3b;(47)m4m21(47)a2b22acc2;(48)a3ab2ab(49)625b4(ab)4;(50)x6y63x2y43x4y2(51)x24xy4y22x4y35;(52)m2a24ab4b2(53)5m5nm22mnn2