This is for pre calculus, please help

The correct answer is:

Step-by-step explanation:

Given that:

To find:

Solution:

Let

We have

...... (1)

Now, we have let:

Putting x = in f(x), we get

....... (2)

Comparing equation (1) and (2):

Taking cubes both sides:

Hence,

The correct answer is:

80x^8−68x^6+16^5−20x^4−4x^3+8x^2

hope i'm right lol

1. 2

2. 11

3. 5

4. 6

5. 7

6. 5

7. -1

8. 1

step-by-step explanation: