Question

daca a+b =5 si c=6 atunci ac + bc =? dau coroana si repede va rog

Answer 1

a+b = 5 (inmultim relatia cu c)
ac + bc = 5c
ac + bc = 30

Answer 2

$\displaystyle a+b=5;~c=6;~ac+bc=? \\ \\ ac+bc=c(a+b)=6 \cdot 5=30 \\ \\ \boxed{ac+bc=30}$