Mathematics
Senior High
17の(2)と(3)を教えてください！
(1) (x-1)(x+x3+x²+x+1)
b²
□ 17 次の式を展開せよ。
4
(c)
*(2) (x³-2x²+2x-1)(x+2x²+2x+1)
*(3) (x+2y-1)(x2-2xy+4y²+x+2y+1)
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