Question

x²+x-2=0
Me ajudem por favoorrrr

Answer 1

Resposta:

x2+2×-×-2=0

×(×+2)-(×+2)=0

(×+2)×(+-1)=0

x=+2=0

x= -1=0

x= -2

x=1

x=-2,x=1