CHO P(X) = X3 – 2X +1, Q(X) = 2X2 – 2X3 + X – 5 A/ TỚNH P(X) +...

Bài 2 : Cho P(x) = x

3

– 2x +1, Q(x) = 2x

2

– 2x

3

+ x – 5

a/ Tớnh P(x) + Q(x) b/ Tớnh P(x) – Q(x)