Mathematics
Senior High
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(4)の解き方を教えてください🙇
目標 練習
46
次の2次不等式を解け。
(1) x²-3x+5>0
(3) 3x²-2√3x+1≤0
(5) x²-8x-16>0
(2) -6x²-19x-15<0
(4) x² +4≤0
(6) x²-3x+2≥2x²-x
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