x=(k-c)/6
6x+c=k
subtract c from both sides
6x=k-c
divide by 6 on both sides
x=(k-c)/6
Given:

To get rid of the fraction, we can multiply both sides by the denominator, which is 3. This will cancel the fraction:

We are left with:

I believe it is the first one but I might be wrong.
Answer:
x^6 + 2x^3 -2x^2 -8x + 4
Step-by-step explanation:
Okay, so we need to multiply f and g.
Since you said asap, I won't do the long explanation...
x3 -4x 2
x2 x6 -4x2 2x2
2 2x3 -8x 4
x^6 + 2x^3 -2x^2 -8x + 4