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Care este product a×b×c stiind ca :
a+b=21 b+c=5 a+c=22


Răspuns :

a+b+b+c+ac=21+5+22
2(a+b+c)=48
a+b+c=48:2=24
c=24-21=3
a=24-5=19
b=24-22=2
axbxc=114
a+b=21
b+c=5
a+c=22
a+b+b+a+c=21+5+22=48
a+b+c=48:2=24
a+b=21 c=24-21=3
b+c=5 a=24-5=19
a+c=22 b=24-22=2
axbxc=19x2x3=114