整式的除法练习题二(共2页).doc
精选优质文档-倾情为你奉上例1 计算:(1)(6ab+8b)÷2b; (2)(27a3-15a2+6a)÷3a;练习:计算:(1)(6a3+5a2)÷(-a2); (2)(9x2y-6xy2-3xy)÷(-3xy); (3)(8a2b2-5a2b+4ab)÷4ab. (4)(8x3-12x2+4x)÷4x类型二 多项式除以单项式的综合应用例2 (1)计算:(2x+y)2-y(y+4x)-8x÷(2x) (2)化简求值:(3x+2y)(3x-2y)-(x+2y)(5x-2y)÷(4x) 其中x=2,y=1练习:(1)计算:(-2a2b)2(3b3)-2a2(3ab2)3÷(6a4b5).(2)如果2x-y=10,求(x2+y2)-(x-y)2+2y(x-y)÷(4y)的值3、当堂测评填空:(1)(a2-a)÷a= ;(2)(35a3+28a2+7a)÷(7a)= ;(3)( 3x6y36x3y527x2y4)÷(xy3)= .计算:(1) (3x3y-18x2y2+x2y)÷(-6x2y); (2)(xy+2)(xy-2)-2x2y2+4÷(xy). 4、拓展:(1)化简 ; (2)若m2-n2=mn,求专心-专注-专业