北师大版七年级数学下册整式的乘法练习题 141.docx

1、北师大版七年级数学下册整式的乘法练习题 1414x2(x4)(x4)(2x3y)(2x3y)(22a)2(22a)2(x2y)1(x2y)1(x2y)26(xy)23(x2y)(x2y)(m2n)(m2n)m23x2(x1)(x1)(mn4n)(mn4n)(53t)2(53t)2(2n3m)(2n3m)(x3y)22(xy)22(53t)(53t)(53n)(53n)m24x2(2y3x)(2y3x)(x2y)1(x2y)1(4y)2(4y)2(2a2b)(2a2b)(x3y)22(xy)23(4y)(4y)(mn4)(mn4)m22x2(2y3x)(2y3x)(m1n)(m1n)(mn4)2

2、(mn4)2(m1)(m1)(x2y)22(xy)24(x2y)1(x2y)1(m2n)(m2n)m24x2(22x)(22x)(x2y)1(x2y)1(53t)2(53t)2(m1)(m1)(x5y)22(xy)24(53t)(53t)(mn4)(mn4)m23x2(2x3)(2x3)(mn4n)(mn4n)(4y)2(4y)2(2n3m)(2n3m)(x4y)22(xy)22(2a2b)(2a2b)(mn4)(mn4)m25x2(4x)(4x)(2n3m4)(2n3m4)(2x3)2(2x3)2(53t)(53t)(x4y)26(xy)24(2n3m)(2n3m)(2m2n)(2m2n)m

3、23x2(2x3)(2x3)(x2yz)(x2yz)(m1)2(m1)2(53t)(53t)(x5y)22(xy)23(x2y)1(x2y)1(2m2n)(2m2n)m24x2(2y3x)(2y3x)(2x3y)(2x3y)(x2y)12(x2y)12(4y)(4y)(x6y)22(xy)22(x2y)1(x2y)1(2m3)(2m3)m24x2(x2y)(x2y)(4yx)(4yx)(mn4)2(mn4)2(mn4)(mn4)(x4y)26(xy)23(2a2b)(2a2b)(mn4)(mn4)m24x2(2x2y)(2x2y)(x2yz)(x2yz)(4y)2(4y)2(22a)(22a)(x2y)24(xy)24(x2y)1(x2y)1(2m2n)(2m2n)m23x2(x2y)(x2y)(2abc)(2abc)(4y)2(4y)2(x2y)1(x2y)1(x5y)24(xy)22(22a)(22a)(22n)(22n)m24x2(x4)(x4)(mn4n)(mn4n)(22a)2(22a)2(2n3m)(2n3m)(x2y)22(xy)24(x2y)1(x2y)1(2n3m)(2n3m)m25x2(2x3)(2x3)