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Salut la toti! Ma puteti ajuta ?
1) X-1 supra 2x-3 = 3x+4supra 6x-1
2)2x^2-3x+4>3x+2
3)||x|-2|=4


Răspuns :


1) (x-1)(6x-1)=(2x-3)(6x-1)
6xpatrat-x-6x+1=12xpatrat-18x+3
6xpatrat-7x+1-3+18x-12xpatrat=0
-6xpatrat+11x-2=0
delta=11patrat-4(-6)(-2)
       =121-48
        =73