If f(x) = 5x^3-2 and g(x)= 2x+1, find (f+g) (x).

Hey there!

To start, whenever you are performing (f+g)(x), this means that you are to add the functions f(x) and g(x) together. 

In this case, f(x) is equal to 5x^3-2 and g(x) is equal to 2x+1.

Because you are adding the two expressions as according (f+g)(x), you should set up this expression:
(5x^3-2)(2x+1)

Now, combine your like terms (terms of the same variables that are all raised to the same power):
(5x^3-2)(2x+1)
=5x^3+2x-1

Therefore, (f+g)(x)=5x^3+2x-1

Hope this helps and I hope you have a marvelous day! :)

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)