Question

Solve the question attached in file.​

Answer 1

Answer:

Hence,x=-1 is not a solution for the given equation.x=1/3 is a solution for the given equation.

Step-by-step explanation:

Given equation:

f(x)=3x^3-x^2-27×+9 / 3x^2+2x-1

Here,

a.f(-1)=3(-1)^3-(-1)^2-27(-1)+9 / 3(-1)^2+2(-1)-1

=-3-3+27+9/3-2-1

=-6+36/1-1

=30

Now,

b.f(1/3)=3(1/3)^3-(1/3)^2-27(1/3)+9 / 3(1/3)^2+2(1/3)-1

=1/9-1/9-9+9 / 1/3+2/3-1

=0