233k views
0 votes
PLEASE HELP!!!
Factorize x^2 -9

2 Answers

2 votes

Answer:

the answer is (x + 3)(x - 3)

User YichenBman
by
3.1k points
5 votes

Answer:

(x + 3) (x - 3)

Explanation:

We know that;

a = 1

b = 0

c = -9

We also know that;

p*q = -9

p + q = 0

In this case, it would make the p value 3, and q value -3

The factorized form would be;

(x + p) (x + q)

=> (x + (3)) (x + (-3))

=> (x + 3) (x - 3)

So therefore, the factorized form;

(x + 3) (x - 3)

Hope this helps!

User Oris Sin
by
3.6k points