问题
填空题
(8xn+2-6xn+1+2xn)÷(2xn-1)=______.
答案
(8xn+2-6xn+1+2xn)÷(2xn-1),
=8xn+2÷2xn-1-6xn+1÷2xn-1+2xn÷2xn-1,
=4x3-3x2+x.
(8xn+2-6xn+1+2xn)÷(2xn-1)=______.
(8xn+2-6xn+1+2xn)÷(2xn-1),
=8xn+2÷2xn-1-6xn+1÷2xn-1+2xn÷2xn-1,
=4x3-3x2+x.