QUESTION 1a.
We want to add

We group similar terms to get

Simplify:

QUESTION 1b.
The given function is:

Expand the parenthesis to obtain,

Group similar terms,

Simplify:

QUESTION 2
The given function is

The zeros of this function is given by;

Split the middle term.

Factor;




Answer:
4(a + b) - 5
Step-by-step explanation:
Pull out the common factor
10,000,000 + 2,000,000 + 400,000 + 30,000