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Question
x^4-7x^2+1
Steven Zheng
posted 5 months ago
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Answer
x^4-7x^2+1
=x^4+2x^2+1-9x^2
=(x^2+1)^2-9x^2
=(x^2-3x+1) (x^2+3x+1)
Steven Zheng
posted 5 months ago
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Steven Zheng
posted 5 months ago