Question

How do you factor this? p4 – 16 (Thanks!)

Answer 1

write p^4 as (p^2)^2

Answer 2

(p^2)^2 - 16?

Answer 3

and 16 is 4^2.....

Answer 4

(p^2 + 4) (p^2 - 4)

Answer 5

difference of squares.
(a^2 - b^2) = (a-b)(a+b)

Answer 6

I got it. Thanks you guys!