Question

Me ajudem !!
X²+4x+2

Answer 1

1° passo: ∆ = b²-4.a.c

∆ = 4²-4.1.2

∆= 16-8

∆= 8

.....

X = -b +/-✓∆ / 2.a

X= -4 +/- ✓8 / 2.1

X¹= -4+✓8 /2 = -2+✓8/2

X²= -4-✓8/2 = -2-✓8/2