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log x (x la pătrat + x -2)=2
e urgent, va rog!!!​


Răspuns :

x^2+x-2=0
x^2-z+2x-2=0
x(x-1)+2(x-1)=0
(x+2)(x-1)=0
x=-2
x=1
log 4 =2
log-2(0)=2