Question

Dacă x+y+z=46si a =10 calculează:a) 13*x+13*y+13*z+13*a​

Answer 1

Răspuns:

13*x+13*y+13*z+13*a​=13·(x+y+z+a)=13·(46+10)=13·56=728

Answer 2

x+y+z=46

a=10

13×x+13×y+13×z+13×a=?

13x+13y+13z+130

13×(x+y+z)+130

13×46+130

728