What is the solution set of the quadratic inequality
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x^2 + x -2 >_ 0
Delta= 1^2 -4.-2.1
Delta=1+8 =9
x=(-1 +-3)/2.1
x= -2
x= 1
(x-1)(x+2)>_0
x should be >_1
x should be <_ -2
There are two pairs of the same answer on your problem though. It would be the first and last ones.
Hope you get it!