Question

9x^2 - y^2 + 4y -4 factorize​

Answer 1

Step-by-step explanation:

Since both terms are perfect squares, factor using the difference of squares formula,

a

2

−

b

2

=

(

a

+

b

)

(

a

−

b

)

where

a

=

3

x

and

b

=

y

−

2

.

(

3

x

+

y

−

2

)

(

3

x

−

y

+

2

)

.