Răspunsuri

2014-10-20T19:35:28+03:00
4 la puterea x + 4 la puterea x * 4 + 4 la puterea x * 4 la puterea 2 = 336
4 la puterea x (1+1*4+1*16)= 336
4 la puterea x * 21=336
4 la puterea x = 336\21
4 la puterea x = 16
x=2