Question

p(x)=3x^2+7+2x^4-3x^2-4-5x+2x^3

Q(x)=-3x^3+2x^2-x^4+x+x^3+4x-2+5x^4

tính p(x) + Q(x)

Answer 1

P(x)=2x^4+2x^3-5x-4

Q(x)=4x^4-2x^3+2x^2+5x-2

P(x)+Q(x)

=2x^4+2x^3-5x-4+4x^4-2x^3+2x^2+5x-2

=6x^4+2x^2-6