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In ce se restrange x^2-x-6 ?
(x^2 este x la puterea 2)


Răspuns :

x^2-x-6=x^2-3x+2x-6=x(x-3)+2(x-3)=(x+2)(x-3)
x^2-x-6=x^2-3x+2x-6=x(x-3)+2(x-3)=(x+2)(x-3)