Mathematics
Senior High
解き方が分からないので教えてくださいт т
練習23の(1)と(2)を教えて頂きたいです🙇
15x²+(2y+1)x+y(y+1)=x² + {y+(y+1)}x+y(y+1)
= (x+y){x+c
= (x+y)(x+y+1)
15
練習
23
次の式を因数分解せよ。
(1) x²+(2a-b)x-2ab (2) x²+(y-3)x-y(2y-3)
終
20
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