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Ajutor dau coroana
(x+2)^2
(x-9)^2
(x+ 2x/3)^2


Ajutor Dau Coroana X22x92x 2x32 class=

Răspuns :

(X+2)^2= x^2+4x+4
(X-9)^2=x^2+18x+81
(X+2x/3)^2=x^2+(4x^2)/3+(4x^2)/9