Question

p^2 - 4p - 21
could someone tell me this answer plz..​

Answer 1

Answer:

(p + 3) (p - 7)

Step-by-step explanation:

Factorization:

$p^{2}$ - 4p - 21

= $p^{2}$ - 7p + 3p - 21

= ( $p^{2}$ - 7p) ( 3p - 21)

= p(p - 7) 3(p - 7)

= (p + 3) (p - 7) (Ans)

Answer 2

Answer:

(p-3)(p-7)

Step-by-step explanation:

-7+3=-4

-7×3=-21

p²-4p-21

p²-7p+3p-21

Taking p common from p²and7p and 3 from 3p and 21

p(p-7)+3(p-7)

Take (p-7) as common and write remaining value in another bracket

(p-7)(p+3)