Răspunsuri

2014-11-07T11:15:10+02:00
2x1+4x5+3x2+5x3+axa=4x2+7x5+2x2
2+20+6+15+axa=8+35+4

43+a²=47
a²=47-43
a²=4
a=2
1 5 1
2014-11-07T12:20:11+02:00
2x1+4x5+3x2+5x3+axa=4x2+7x5+2x2
2+20+6+15+axa=8+35+2x2
43+axa=43+2x2
axa=2x2⇒ a=2
1 4 1