varog spuneti urgent x+5x3x+2=0

Răspuns :

x+5*3x+2 = 0
x+15x +2=0
16x+2 = 0
16x = -2
x = -1/8 
x+5*3x+2=0
x+15x+2=0
16x=-2
x=-2/16=-1/8=-0,125