State how many imaginary and real zeros the function has.

f(x) = x3 + 5x2 - 28x - 32

Question

State how many imaginary and real zeros the function has.

f(x) = x3 + 5x2 - 28x - 32

mertsj · Answer

Did you use synthetic division to find a real 0?

anonymous · Answer

no i didnt. what am i dividing by for synthetic division?

mertsj · Answer

You have the following choices:  
$$\pm1, \pm2,\pm \pm4, \pm8, \pm16,\pm32$$

anonymous · Answer

I believe its 1,8,and 4?

anonymous · Answer

i think those are the real zero's so there are 3. thanks

jdoe0001 · Answer

hmmmm have you covered Descartes Law of Signs yet?

anonymous · Answer

no not yet

jdoe0001 · Answer

seems they only want the amount of complex and real ones, not necessarily get them

jdoe0001 · Answer

mertsj · Answer

I don't believe 1 works.

anonymous · Answer

that is what they want. the answer choices are 
1 imaginary; 2 real

 2 imaginary; 1 real

 0 imaginary; 3 real

 3 imaginary; 0 real

mertsj · Answer

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