如果代数式x^4-(a-1)x^3+5x^2+(b+3)x-1不含x^3和x项,则a=( ),b=( )

问题描述:

如果代数式x^4-(a-1)x^3+5x^2+(b+3)x-1不含x^3和x项,则a=( ),b=( )

x^4-(a-1)x^3+5x^2+(b+3)x-1不含x^3和x项
则a-1=0
a=1
b+3=0
b=-3
则a=(1 ),b=(-3 )