Question

compare and contrast how you would factor x^2-9 and x^2+9

Please explain why they are factored differently. ​

Answer 1

Answer:

for x^-9 Explanation:

This is a special case of the quadratic:

x

2

−

y

2

=

(

x

+

y

)

(

x

−

y

)

(

x

2

−

9

⇒

x

2

−

3

2

⇒

(

x

+

3

)

(

x

−

3

)