1、北师大版七年级数学下册整式的乘法练习题 1394(mn4)(mn4)(4m)(4m)m23x2(x2y)(x2y)(2x3y)(2x3y)(x2y)2(x2y)2(m1)(m1)(x4y)28(xy)22(mn4)(mn4)(m2n)1(m2n)1m22x2(22x)(22x)(2abc)(2abc)(x2y)2(x2y)2(2n3m)(2n3m)(x5y)24(xy)24(x2y)(x2y)(m2n)(m2n)m23x2(x2y)(x2y)(4yx)(4yx)(2x3)2(2x3)2(x2y)(x2y)(x4y)24(xy)23(x2y)1(x2y)1(4m)(4m)m22x2(x2y)(x
2、2y)(2n3m4)(2n3m4)(53t)2(53t)2(2n3m)(2n3m)(x3y)28(xy)22(mn4)(mn4)(53n)(53n)m23x2(x1)(x1)(x2yz)(x2yz)(x2y)2(x2y)2(4y)(4y)(x6y)26(xy)24(x2y)(x2y)(4m)(4m)m24x2(x4)(x4)(2abc)(2abc)(2x3)2(2x3)2(2a2b)(2a2b)(x4y)26(xy)22(2x3)(2x3)(m2n)(m2n)m22x2(2y3x)(2y3x)(m1n)(m1n)(2a2b)2(2a2b)2(22a)(22a)(x6y)28(xy)22(2n3
3、m)(2n3m)(m2n)(m2n)m23x2(22x)(22x)(2n3m4)(2n3m4)(mn4)2(mn4)2(m1)(m1)(x6y)28(xy)23(4y)(4y)(53n)(53n)m23x2(x2y)(x2y)(m1n)(m1n)(2n3m)2(2n3m)2(2x3)(2x3)(x2y)28(xy)24(2x3)(2x3)(4m)(4m)m24x2(53x)(53x)(m1n)(m1n)(2n3m)2(2n3m)2(4y)(4y)(x6y)26(xy)22(2x3)(2x3)(53n)(53n)m22x2(x1)(x1)(x2yz)(x2yz)(4y)2(4y)2(2x3)(2x3)(x4y)26(xy)23(2a2b)(2a2b)(2n3m)(2n3m)m25x2(x2y)(x2y)(x2y)1(x2y)1(2x3)2(2x3)2(mn4)(mn4)(x5y)28(xy)24(4y)(4y)(2n3m)(2n3m)m22x2(53x)(53x)(4yx)(4yx)(4y)2(4y)2(2a2b)(2a2b)(x2y)28(xy)24(2x3)(2x3)