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1、整式运算练习1计算:a4a4aa7a2a6a3a52计算:xm3x2xx3xm5x2x5xm9x43已知amn6,an2求a2ma3n的值4求下列各式中的x:(1)8x4x2; (2)x4165计算:(2ab4)(ac2)(3a3b2)6计算:(2xy2)2(3x2y)(x2)2y52x2(x3y4)7解方程3x(x2)2x(x1)5x(1x)186ab2(2ab4)(ab3)2 9x2(4xy26x2yx2)(5x3y4)10a3(3ab2)3b(3ab)29a5b2 11计算:7x2(2x1)(x5)2(x3)(x4)12求乘积(3x45x3x21)(x3x2x2)中含x4项的系数13已知
2、(x2mxn)(x3)的积为x3x23x9求m、n的值14计算(1)(7abc)(bc7a);(2)(m2n3)(n3m2)15计算:(1)104996;(2)495016计算:(1)(2ab)(4a2b2)(2ab);(2)(2x1)(2x1)(4x21)(x4)17计算:(1)(2a3b)2;(2)19982;(3)(a2b3c)218计算:(1)(x2xyy2)(x2xyy2);(2)(ab)2(a2b2)2(ab)2;(3)97103999119已知(ab)215,ab2,求(1)a2b2,(2)(ab)2的值20计算:(1)(2a5b)2; (2)(ab2c)2;(3)(x3y2)(
3、x3y2); (4)(x2y)(x24y2)(x2y);(5)(2a3)2(3a2)2; (6)(a2b3c1)(a2b3c1)(7)(s2t)(s2t)(s2t)2; (8)(t3)2(t3)2(t29)221求值:(1)已知ab7,ab10,求a2b2,(ab)2的值 (2)已知a2b5,ab,求a24b211的值 (3)已知(ab)29,(ab)25,求a2b2,ab的值22解下列方程或不等式(1)(2x1)2(3x2)2(1x)(5x4)5(2)2(3x22)(2x3)(2x3)(x1)(2x3)23计算:(1)a3n2a2n1(n为正整数);(2)(ab)4(ab)2;24计算:(1
4、)27m9m3m; (2)(a2n)4(a)3(a3)2n(a)2n125计算25()4p02123 26用科学记数法表示下列各数:(1)4002010;(2)35000;(3)0.00000816;(4)0.002727已知xm6,xn9,求x3m2n的值28计算:(1)64ab2c3(ac2); (2)(3x2n1yn)3(x3y)2n29计算(4.5108)(1.2103)(3104)30计算:(1)12(a2b)5(xy)n427(a2b)5(xy)3;(2)3n3(m3)26m4n2m4n3(m2n2)31计算:(1)(6a5b4a4b3a3b3)a3b3;(2)(x2n1yn3x2
5、ny2n8xny2n1)(4xyn1)32化简(x2y)(3x4y)(yx)(yx)(2x3y)2(x)33计算: (2xy)2(x2)(xy2)33x(x3y2)34化简:(1)(3xy)2x32x2(3xy2)3y9x4y2;(2)(4xy)24y(x)8x235计算:(1)(a3bn1)2(an2b2)34;(2)x2(2xy2)3y(4xy)216x4y236已知:ab3,ab5求下列各代数式的值:(1)(a3)(b3);(2)a2b2;(3)(ab)2; (4)a2abb237已知a2a40,求2a310a230的值38已知(x2)(x2pxq)x35x213x2,求p,q的值39解下列方程或不等式(1)2(2y1)28(y1)(y1)34(2)(x2)(x22x4)x(x2)24x(x1)40(1)如果a4b30,求2a16b的值;(2)如果2a3,2b5,求42ab的值41已知abc8,a2b2c230,求abbcac的值42已知a26ab210b340,求代数式(2ab)(3a2b)4ab的值43解方程组与不等式(1)(2)(x1)(x2x1)x(x1)2(2x1)(x3)
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