Mathematics
Senior High
Resolved
赤矢印のところの式の変換がわかりません
よかったら教えて欲しいです!
(1) (与式)=(x+1)2-2x4
4=
=(x+√√2x²+1)(x²-√2x²+1)
={(x²+1)2-(2-√2)x2){(x²+1)2-(2+√2)x2}
2
=(x²+ √√2-√√2x+1)(x²-√2-√√2x+1)
x(x²+√√2+√2x+1)(x² - √2+ √√2x+1)
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