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)(x4)(x+4)(x4)
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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