Question

Resolva as equassoes e determine o valor de x
A) x elevado a 2 -x-3=0

Answer 1

x²-x -3=0

∆= (-1)²-4.1.(-3)
∆= +1 +12
∆=13

x= -(-1)±√13/2.1
x= 1 ±√13/2

x1= 1+√13/2

x2= 1-√13/2