Question

Dacă a•b=2*3•3*3
a•c=2*5•5*3
b•c=3*5•5
(a•b•c)=?

Answer 1

A+b=2×3+3×3
A+b=6+9
A+b=18



A+c=2×5+5×3
A+c=10+15
A+c=25

B+c=3×5+5
B+c=15+5
B+c=20

A=18
B=25
C=20

18+25+20=63