Question

Dau coronița!Ex.7!Dau 15 puncte!

Answer 1

1. a*b+a*c=a*(a+b)=11*8=88
2.2*a+3*b+3*c=2*11+3*(a+b)=22+3*8=22+16=38
3.10*a+9*b+9*c=10*11+9(a+b)=110+9*8=110+72=182
4.a*b+a*c+25=a*(b+c)+25=11*8+25=88+25=113
5.a*b+a*c-34=a*(b+c)-34=11*8-34=88-34=54
6.7*b+7*c+9*a=7*(b+c)+9*11=7*8+99=48+99=147
7.11*b+11*c-6*a=11*(b+c)-6*11=11*8-66=88-66=22
8.3*11-3*(b+c)=33-3*8=33-24=9
9.11*b+a*c=11*b+11*c=11*(b+c)=11*8=88