Mathematics
Senior High
49(1)から(4)のやり方を教えてください。!
49 (1)x+x²+1
(3)x+4
50 (1) (a-b)3+ (b-c)3+(c-a)³
(2) x 4 -7x² y²+y4
(4) x4-27x2 y²+ y²
(2)(x+y+z)-x-ya
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