Question

What is the factored form of the expression? s^4 – 16

Answer 1

hint you can change s^4 to (S^2)^2
and 16 to (4)^2
as a^2 -b^2 = (a+b)(a-b)
can you do it??

Answer 2

(s - 2i)(s + 2i)(s - 2)(s + 2)

Answer 3

???

Answer 4

you will get
(s^2 + 4) (s^2 - 4)
can you make more factors out of it??

Answer 5

i dunno

Answer 6

look for(s^2 - 4) here
it can be written as
(s)^2 -(2)^2
and again apply formula you will get
(s+2)(s-2)
combine all
(s^2 + 4)(s+2)(s-2)
got it??

Answer 7

none of those are my options

Answer 8

A. (s - 2)2(s + 2)2

B. (s - 2)(s + 2)

C. (s - i)(s + i)(s - 2)(s + 2)

D. (s - 2i)(s + 2i)(s - 2)(s + 2)

thats what in my workbook

Answer 9

you were right @daboss33

Answer 10

ty