Question

Resolva a equação de segundo grau 6x² + x - 1 = 0.​

Answer 1

a=6 b=1 c=-1

∆=b² -4 Ac

∆=(1)²-4.6.(-1)

∆=1+24

∆=25

x=-b±√∆/2a

x=-1±√25/2.6

x=-1±√25/12

x’= -1+5/12=4/12=2/6=1/3

x”-1-5/12=4/12=2/6=1/3