👤

Rezolvati in R ecuatia 7x(1+x)=2x-3

Răspuns :

7x+7x patrat =2x-3
5x+7x patrat +3 = 0
a=7
b=5
c=3
Delta=25-7*3=25-21=4
Radical din delta =2
X1= -5+2/14
X1=-3/14
Si
X2=-5-2/14
X2=-7/14
X2=-2