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descompuneti in produs de factori expresia:
E(a,b)=a²b +ab²+2ab+a²+b²+a+b=
Va rog urgent


Răspuns :

 [tex](a^2b+ab^2)+(2ab+a^2+b^2)+(a+b)=\\
=ab(a+b) +(a+b)^2+(a+b)=\\
=(a+b)(ab\;+\;a+b\;+\;1)=\\
=(a+b)[a(b+1)+b+1]=\\
=(a+b)(b+1)(a+1)[/tex]