Mathematics
Senior High
197の連立不等式って数直線書かないと求められませんか??
197 次の連立不等式を解け。
[x²+6x+8>0
x²+2x-3<0
(1)
* (4)
x²+x-2<0
(x²+x-1≥0
*(2)
(5)
(x²-x-1250
x²-3x+2>0
x²-10x+20<0
-x²+6r-3>0
Answers
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