Mathematics
Senior High
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5番の問題の解説をお願いします🙏
2次方程式x+2mx+3m+10=0が重解をもつとき, 定数mの値を求め
m = -2,m=5
5.2次不等式|x2-6x-7|≧2x+2 を解け。
C
2
*≤5, 9≤x
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