You multiply 5 x 3 Bc you multiplied the left side by 3. Hope this helps
Answer:
I think this question is askingg fofr f(g(x)), in which case you are simply inserting g(x) into the f(x) solution, in this case 2 for x. This is because (f*g)(x)=f(g(x)).
Step-by-step explanation:
The arrow will always point to the bigger number.

Replace g(n) and h(n) with the functions to multiply

Multiply the First, Inner, Outer, and Last terms in the parentheses. when multiplying a variable the exponents of the same base add together.