a lot of pre calc help PLEASE?

RAK

New member
what are the remaining zero

h(x)=3x^4+10x^3+4x^2+40x-32
zero:-2i

H(x)=x^4-9x^3+21x^2+21x-130

write in factored form
f(x)=2x^4-5x^3+12x^2+47x-26


i have already tried looking in the book and online and dont understand what the hell im suppose to do, is there a short cut i can do with the graphing calculator (TI-83)?
 
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