Question

giúp mik bài 5

Answer 1

5:

a: f(x)=-x^5-6x^4+2x^3+4x+9

g(x)=x^5+7x^4+2x^3+2x^2-3x-9

b: h(x)=x^4+4x^3+2x^2+x

c: h(x)=0

=>x(x^3+3x^2+2x+1)=0

=>x=0 hoặc x=-2,32