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b² - 4ac > 0
(2m-3)² - 4(m-1)(m+2) > 0
(4m² - 12m + 9) - 4(m² + m - 2) > 0
4m² - 12m + 9 - 4m² - 4m + 8 > 0
-16m + 17 > 0
-16 m > -17
m > -17/-16
m < 17/16
x1 + x2 > 0
-b/a > 0
> 0
-2m + 3 > 0 m-1>0
-2m > -3 m = 1
m = 3/2
1 < m < 3/2
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