Hello!
These problems involve the Distributive Property, which is defined as a(b + c) = ab + ac.
a. 4(y + 2)
4y + 2
That is the most simplified this expression can get since 4y and 2 are unlike terms.
b. (5 - x)(3y)
15y - 3xy
c. - 2(y - 3)
-2y + 6
That's all there is to it! I hope this help you. (: