Răspunsuri

2014-08-21T16:37:47+03:00
A*(b+c)=  ab+ac
 
=  2/15 + 11/75=

=(10+11)/75= 21/75= 7/25
2 5 2
2014-08-21T19:03:22+03:00
A*b=2/15
a*c=11/75
a*(b+c)=a*b+a*c=2/15+11/75=10+11/75=21/75=7/25