若多项式x^4-(a-1)x^3+5x^2-(b+3)x-1不含x^3和x项,求a,b的值.
问题描述:
若多项式x^4-(a-1)x^3+5x^2-(b+3)x-1不含x^3和x项,求a,b的值.
答
多项式x^4-(a-1)x^3+5x^2-(b+3)x-1不含x^3和x项
-(a-1)=0,-(b+3)=0
a=1,b=-3