Mathematics
Senior High
(２)の解説をお願いします。
答えは1です。
tt
B
67
2次方程式 3x°-7x+3=0 の2つの解を a, B とするとき, 次の式の値を求めよ。
A
58
2
-mR+ R°
B
B-1
a
α-1
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