Mathematics
Senior High
Resolved
高一因数分解です
緑の丸がついてる（5）と（6）の答えと解説をお願いします！
x+3=(x−1)(2x-3)
xy-5y² = (2x+y)(2x-5y)
-1-2
(2)2
y →
2y
X
-3--3
3
2
-5y
-10y
-5
4
-5y²
-8y
分解せよ。
+2
(2) 2x²+9x+10
(3) 2x²-13x+6
-21
⑤ 3x²+5xy−2y² (© 6x²-7ax−3a²
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