计算:(1)(n3-7mn2+n5)÷n2=______;(2)(12x4y6-8x2y4-16x3y5)÷4x2y3=______.

发布时间:2020-08-11 21:40:41

计算:
(1)(n3-7mn2+n5)÷n2=______;
(2)(12x4y6-8x2y4-16x3y5)÷4x2y3=______.

网友回答

解:(1)(n3-7mn2+n5)÷n2,
=n3÷n2-7mn2÷n2+n5÷n2,
=n-m+n3;

(2)(12x4y6-8x2y4-16x3y5)÷4x2y3,
=12x4y6÷4x2y3-8x2y4÷4x2y3-16x3y5÷4x2y3,
=3x2y3-2y-4xy2.
故填空
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