The answer is f(x) = x^3+5x^2+x
because the exponents are both even and odd numbers.
To get the
Mean, you have to add all the ages of the men together:

Next you divide

by the amount of people:
Final Answer: 26
Answer 10x - 15
Step-by-step explanation:
Because when you do the distributive property, you multiply the things in the parenthesis so 5 multiplied by 2x would be 10x and 5 multiplied by -3 would be -15. Hope this helps :)