Question

Calculati : a) ab+ac stiind ca b+c=59 si a=2.
b) ab-ac stiind ca a=7 si b-c=100
c) ab+ac+ad stiind ca a=25 si b+c+d=50
d) xy+xz+15 stiind ca x=9 si y+z=11
e) 5xy+5xz+21 stiind ca x=4 si y+z=100



Ajutati-ma, va rog.Multumesc.

Answer 1

Folosesti factorul comun! Succes!