x2+3x−2=0x^{2}+3 x-2=0x2+3x−2=0
x2+3x−8=0x^{2}+3 x-8=0x2+3x−8=0
x2−3x−8=0x^{2}-3 x-8=0x2−3x−8=0
x2−6x+4=0x^{2}-6 x+4=0x2−6x+4=0