Mathematics
Senior High
Resolved
（3）（4）解説お願いします。
練習
1
次の2次方程式を解け。
(1) x²+x-6=0
(3) x²-9 = 0
904-07 Jet word
(2) x²-7x+ 10 = 0
(4) x²-2x = 0
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