Mathematics
Senior High

(4)教えてください

(2) x²+2x² +9 (4) x²-x²y²+16yª ➡p.

Answers

x⁴-x²y²+16y⁴

= (x⁴+8x²y²+16y⁴)-9x²y²

= (x²+4y²)²-(3xy)²

= (x²+3xy+4y²)(x²-3xy+4y²) ・・・(答え)

となります。

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