1.(x的4次方-2x的3次方+x的2次方+2x-1)/x的2次方+x+1的商式和余式2.2x“5-x’‘4+kx“3+2x”2-x+1能被3x+（接上）整除,求k1的问题后面是3x+6

Question

1.(x的4次方-2x的3次方+x的2次方+2x-1)/x的2次方+x+1的商式和余式 2.2x“5-x’‘4+kx“3+2x”2-x+1能被3x+
（接上）整除,求k
1的问题后面是3x+6

Answer 1

1.(x的4次方-2x的3次方+x的2次方+2x-1)/(x的2次方+x+1)
=x^2-2x+2.(2x-3)
2.(2x^5-x^4+kx^3+2x^2-x+1)/(3x+6)
=(2/3)x^4-(5/3)x^3+(k+10)x^2/3-2(k+9)x/3+(4k+35)/3.-8k-69
因为是整除
-8k-69=0
k=-69/8