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subpunctul b) pls multumesc pwp


Subpunctul B Pls Multumesc Pwp class=

Răspuns :

[tex]x\circ y=xy+2x+2y+2=xy+2x+2y+4-2=\\=x(y+2)+2(y+2)-2=(y+2)(x+2)-2=(x+2)(y+2)-2.[/tex]

Green eyes.