# Algebra

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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 -

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 -

I wasn't sure but it is A then?

• Algebra -

yes,
how about that confidence thing ?

• Algebra -

Not too good with math, actually i am no good at it.

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