Răspunsuri

2014-02-17T14:49:00+02:00
X^2-4x+3=0
delta= b^2-4ac
delta=16-4*1*3
delta=16-12
delta=4

x1=(-b-rad delta)/2a
x1=4-2/2
x1=2/2
x1=1

x2=(-b+rad delta)/2a
x2=4+2/2
x2=6/2
x2=3

================================
x^2+2x-35=0
delta= b^2-4ac
delta=4-4*1*(-35)
delta=4+140
delta=144 => rad din delta=12

x1=(-b-rad delta)/2a
x1=-2-12/2
x1=-12/2
x1=-6

x2=(-b+rad delta)/2a
x2=-2+12/2
x2=10/2
x2=5
Prima data calc delta
dar nu stiu daca delta=-136 rezulta ecuatia are 1 sau 2 soluti relae si diferite asta nu inteleg 1 sau 2 solutii
delta nu e cu minus
hai ca editez rasp
ok si merci pt ce faci