ban tham khao bai toan bo de P(x2) = P2(x) va phuong trinh dang p(f).p(g)=p(h) nhe
giai
f(x)=x-2 g(x) =x-2 h(x) = x2 -2x
de thay p(x)=x+1 tman de bai nen
P(x)=0 P(x)=1 P(x)=(x+1)n (n la so nguyen duong )
p/s :xin loi may tinh mk loi ko danh dau dc ban thong cam nhe