Question

X² - X - 6 =0 AJUDAA GNTT ?

Answer 1

Sem problemas , só usar Bhaskara ...

x²-x-6=0

Δ=b²-4.a.c
Δ=(-1²)-4.1.(-6)
Δ=1+24
Δ=25

Answer 2

Δ=b²-4.a.c=1²-4.1.(-6)=25⇒logo x= -b+/-√Δ/2.a
então---x=1+/-√25/2.1 = -1+5/2=2 e -1-5/2=-3
x=(2,-3)