Question

Vă rog ajutoooor! Dau coroana
exercițiul 4
Repede va rog!

Answer 1

a)ab+ac=a(b+c)=3/8*10/9=6/12

a=3/8

b+c=10/9

b)bc-ba=b(c-a)=7/4*8/21=2/3

b=7/4

c-a=8/21

c)2c(a-b)=2ac-cbc=2*7/6-2*5/8=14/6-5/4=13/12