Răspuns :
a) b+c-a= 5-3=2
b) 4(a+1)= 4(3+1)=4•4=16
c) 3(a+2)+4(a-1)=3•5+4•2=15+8=23
d) 2a+4b+4c= 2•3+4(b+c)=6+4•5=6+20=26
e)ab+ac=a(b+c)=3•5=15
coroana pls?
b) 4(a+1)= 4(3+1)=4•4=16
c) 3(a+2)+4(a-1)=3•5+4•2=15+8=23
d) 2a+4b+4c= 2•3+4(b+c)=6+4•5=6+20=26
e)ab+ac=a(b+c)=3•5=15
coroana pls?