for x=3

I hope this was what you asked for.
The second post is wrong.
The third post is also wrong.
The fifth post is also wrong.
558 is the number of dollars made in revenue. Assuming each student payed the same, you actually can find out the price that each student payed, which is 4.50.
Answer:
the greatest number is 107 and is greater than the smallest number 104.6
For this case what you should do is:
1) Multiplication of terms within parentheses correctly.
2) Rewrite the expression respecting power properties.
3) Add or subtract terms of equal power.
Note: See attached image.
Answer:
x ^ 3 + 3x ^ 2 -16x - 48 = 0