Mathematics
Senior High
Solved
最後の下二弾が分かりません
教えて欲しいです
(4) (2x-3y)2-(3x-2y)²
=((2x-3y)+(3x-2y)||(2x-3y)-(3x-2y))
(2x-3y+3x-2y)(2x-3y-3x+2y)
=
=(5x-5yX-x-y)
= −5(x+y)(x− y)
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