Question

Stiind ca a×b=40,a×c=45,aflati a×(b+c)=?

Answer 1

$a*(b+c)=a*b+a*c=40+45=85$

Answer 2

a*b=40
8*5=40
8*c=45
c=45;8
c=9
a*(b+c)=?
8*(5+9)=
8*14=112