Răspunsuri

2014-10-28T18:47:27+02:00
10x la a 2-a = 100x
100x + 7x + 1 = 0
107x + 1 = 0
107x = -1
x = -1 / 107
2014-10-28T19:02:53+02:00
(8x-1)(x+1)= 0 Note:SUM of the outside terms(8x) and the inside terms(-x) = 7x
(8x-1)= 0 x = 1/8
(x+1)= 0 x = 0