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Algebra

posted by on .

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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