Posted by **Audrey** on Thursday, July 23, 2009 at 8:18pm.

Find all of the zeros of the polynomial function and state the multiplicity of each.

f (x) = (x^2 – 16)^2

A. – 4 with multiplicity 2 and 4 with multiplicity 2

B. – 4i with multiplicity 2 and 4i with multiplicity 2

C. 4 with multiplicity 2

D. 4 with multiplicity 4

I think the answer is A, any thoughts?

- Algebra -
**Reiny**, Thursday, July 23, 2009 at 9:43pm
look at it this way...

f(x) = (x^2 – 16)^2

= (x^2 - 16)(x^# - 16)

= (x+4)(x-4)(x+4)(x-4)

the answer should be obvious, trust yourself !

- Algebra -
**Audrey**, Thursday, July 23, 2009 at 9:51pm
I wasn't sure but it is A then?

- Algebra -
**Reiny**, Thursday, July 23, 2009 at 9:55pm
yes,

how about that confidence thing ?

- Algebra -
**Audrey**, Thursday, July 23, 2009 at 10:13pm
Not too good with math, actually i am no good at it.

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