Răspuns :
axb=8
8=( 2x axb)
8=2ab
8/2ab
a=4
4xb=8
8/4=2
b=2
ax b=8
4x2 =8
a x c=16
a=4xc=16
c=16/4
c=4
10x (4 x 2 + 4 x 4)
10 x (8 +16)
10 x 24=240
axb=8
8=( 2x axb)
8=2ab
8/2ab
a=4
4xb=8
8/4=2
b=2
ax b=8
4x2 =8
a x c=16
a=4xc=16
c=16/4
c=4
10x (4 x 2 + 4 x 4)
10 x (8 +16)
10 x 24=240