Question

Daca ab=18 si ac=10, calculati a (b+c) si a (b-c).Plzzzz dau coroana..

Answer 1

18-10=8(b)
18-8=10(a)
10-8=2(c)
a(b+c)=10(8+2)
=10•10
=100
a•(b-c)=10•(8-2)
=10•6
=60

Answer 2

ai rezolvarea in imagine