Mathematics
Senior High
解説お願いします
問・ 12 次の式を因数分解せよ.
(1)x45x2
+4
(3) x2
x²-2xy + y² −x + y −6
(2) (a+b)²+2(a+b)-3
(4) 3x2+7xy+2y2x+3y-2
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