Question

Me Ajudem pls ↓
x^{2} +2x-3=0

Answer 1

x²+2x-3=0
x= -2±√2²-4.1.(-3)/2
x= -2±√4 +12/2
x= -2±√16/2
x=-2±4/2
x'= -2+4/2
x= 2/2
x=1
x'' = -2-4/2
x=-6/2
x= -3

Answer 2

x² + 2x - 3 = 0
Δ = 4 + 12
Δ = 16

x = (-2 +- 4) /2
x' = -3
x'' = 1