Question

Resolva a equação do 2 grau:
A) x^2+3x-2=0

Answer 1

∆= b^2 - 4×a×c

∆= 3^2 - 4×1×(-2)

∆= 9 + 8

∆= 17

x= -b +-√∆/2×a

x= -3 +-√17/2

x1= -3 -√17/2

x1= -1,5-√17

x2= -3 +√17/2

x2= -1,5 + √17