(-81xn+5+6xn+3-3xn+2)÷(-3xn-1)等于(  )A.27x6-2x4+x3B.27x6+2x4+xC.27x6-2x4-x3D.27x4

(-81xn+5+6xn+3-3xn+2)÷(-3xn-1)等于(  )A.27x6-2x4+x3B.27x6+2x4+xC.27x6-2x4-x3D.27x4

题型:单选题难度:一般来源:不详
(-81xn+5+6xn+3-3xn+2)÷(-3xn-1)等于(  )
A.27x6-2x4+x3B.27x6+2x4+x
C.27x6-2x4-x3D.27x4-2x2-x
答案
(-81xn+5+6xn+3-3xn+2)÷(-3xn-1),
=(-81xn+5)÷(-3xn-1)+(6xn+3)÷(-3xn-1)-3xn+2÷(-3xn-1),
=27x6-2x4+x3
故选A.
举一反三
计算:6x3÷(-2x)=______.
题型:填空题难度:一般| 查看答案
计算6m3÷(-3m2)的结果是(  )
A.-3mB.-2mC.2mD.3m
题型:单选题难度:简单| 查看答案
若4x2+3x-16除以一多项式,得商式为x+2,余式为-6,则此多项式是(  )
A.4x-5B.4x-11
C.4x3+11x2-10x-26D.4x3+11x2-10x-38
题型:单选题难度:简单| 查看答案
计算:(9x4-15x2+6x)÷3x.
题型:解答题难度:一般| 查看答案
计算8x6÷(-x3)的结果是(  )
A.-8x2B.8x2C.-8x3D.8x3
题型:单选题难度:一般| 查看答案
最新试题
热门考点

超级试练试题库

© 2017-2019 超级试练试题库,All Rights Reserved.