(x ,-1,0,0)(0,x,-1,0)(0,0,x,-1)(a3,a2,a1,x+a0)四行四列

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(x,-1,0,0)(0,x,-1,0)(0,0,x,-1)(a3,a2,a1,x+a0)四行四列(x,-1,0,0)(0,x,-1,0)(0,0,x,-1)(a3,a2,a1,x+a0)四行四列(x

(x ,-1,0,0)(0,x,-1,0)(0,0,x,-1)(a3,a2,a1,x+a0)四行四列
(x ,-1,0,0)
(0,x,-1,0)
(0,0,x,-1)
(a3,a2,a1,x+a0)
四行四列

(x ,-1,0,0)(0,x,-1,0)(0,0,x,-1)(a3,a2,a1,x+a0)四行四列
此题可以化简为:
(x ,-1,0,0) (0 ,-1,0,0)
(0,x,-1,0) + (0,x,-1,0)
(0,0,x,-1) (0,0,x,-1)
(0,a2,a1,x+a0) (a3,a2,a1,x+a0)
(x,-1,0)
=x (0,x,-1) +a3
(a2,a1,x+a0)
(x,-1,0) (0,-1,0)
=x{ (0,x,-1) + (0,x,-1) } + a3
(0,a1,x+a0) (a2,a1,x+a0)
按照这种思路依次类推 解出最终答案为:x^4+a0*x^3 +a1*x^2+a2*x+a3