Respuesta :

abcdefdfgfghh

Answer:

7 ( ( x + 2) ( x - 2 ) )

Step-by-step explanation:

28 - 7 x^2

factor out 7

7 ( 4 - x^2)

rewrite

7 ( 2^2 - x^2)

write using special products

7 ( ( 2 - x ) ( 2 + x ) )

Answer:

28-7x^2

7(4-x^2)

7(2^2-x^2)

7(2-x)(2+x)