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plss. ajutati ma.
daca a= -2 si b+c= -15, calculati ab+ ac


Răspuns :

ab+ac=a(b+c)
-2* (-15)= 30
[tex]a=-2 \\ b+c=-15 \\ ab+ac=a(b+c)=-2 \cdot (-15)=30 \\ \boxed{ab+ac=30}[/tex]