1. add or subtract. show your work

a. (-2x^2-4x+13)+(12x^2+2x-25)

b. (7x^2+4x--3x+15)

2. find the roots. list your steps correctly.

f(n)=n^2-6n-16

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;

associative property hopes this ! : )

step-by-step explanation:

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4