alyxlovesr5 alyxlovesr5

29-10-2021
Mathematics

contestada

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

Please explain why they are factored differently.

Respuesta :

chandankarn17 chandankarn17

29-10-2021

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

)

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