factor 9x^8 + 2x^4 + 1
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1 Answer

9x^8 +2x^4+1=0

let y=x^4 & yu hav 9y^2 +2y+1=0

quadratik equashun giv roots av y=-(1/9) +0.314268052i (komplex variabels)

Then yu gotta take 4th root av this tu get bak tu x

(first put it in polar form: size=0.3333317979434611 & angel=-1.2309577888 rads)
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