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Aratati ca (x+2) la puterea3 -x - 2 = (x+1)(x+2)(x+3)
Cu rezolvare completa va rog


Răspuns :

[tex] (x+2)^{3}-(x+2)=(x+1)(x+2)(x+3) \\ (x+2)[ (x+2)^{2} -1]=(x+1)(x+2)(x+3) \\ (x+2-1)(x+2+1)=(x+1)(x+3) \\ (x+1)(x+3)= (x+1)(x+3) [/tex]