How do you write binomial expansions?

5.(04.07) two different plants grow each year at different rates, which are represented by the functions f(x) = 4* and g(x) = 5x + 2. what is the first year the f(x) height is greater than the g(x) height? year 3 year 0 year 2 year 1

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)