x⁴+5x²+9 Factorise.
With process please.
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Answer [x^4 + 5x²+9]
adding and subtracting x²,
=[x^4 +5x² +x² +9] -x²
=(x^4 +6x² +9) - x²
=(x²+3)² - x²
=(x²+3 +x)(x²+3 -x)
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Answer :- this might be help full
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