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✨ Best Answer ✨

48 (x+y)²-4(x+y)+3
A²-4A+3
(A-1)(A-3)
(x+y-1)(x+y-3)

49 a²b-7a²+4b-28
a² (b-7)+4(b-7)
a²A+4A
A(a²+4)
(b-7)(a²+4)

50 x²+2xy-2xz-4yz
x(x+2y)-2z(x+4y)
xA-2zA
A(x-2z)
(x+2y)(x-2z)

mo

ありがとうございます!!
とても分かりやすいです🙇‍♀️

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