Question

Factor completely p^4 – 18p^2 + 81

(p^2 – 9)(p^2 – 9)

(p – 3)^2(p + 3)^2

(p – 9)(p + 9)(p^2 + 3)

(p – 3)(p + 3)(p^2 – 3)

Answer 1

Those are the choices

Answer 2

first one

Answer 3

but you still factor that choice even more

Answer 4

oh ya so its the second one

Answer 5

p^4-9p^2-9p^2+81
p^2(p^2-9)-9(p^2-9)
(p^2-9)(p^2-9)
(p+3)(p-3)(p+3)(p-3)
(p-3)^2(p+3)^2

Answer 6

Thank you :D

Answer 7

np