SOLUTION: factor x^-729 factor x^4+3x^2-28

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Question 174060This question is from textbook
: factor x^-729
factor x^4+3x^2-28 This question is from textbook

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
factor x^-729
= (x-27*(x+27)
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factor x^4+3x^2-28
= (x^2 + 7)*(x^2 - 4)
= (x^2 + 7)*(x - 2)*(x + 2)