Question

va rog ajutatima                va dau ca cel mai inteligent

Answer 1

[tex]1)2n+4+8=16 \\ ~~~~2n+12=16 \\ ~~~~2n=4 \\ ~~~~\boxed{n=2} \\ \\ 2)a*b=36 \\ ~~~~a*c=27 \\ ~~~~a(b+c)=ab+ac=36+27=\underline{63} \\ ~~~~a(b-c)=ab-ac=36-27=\underline9[/tex]