3x²-x-2=0
Δ=1+24=25 (Δ=b²-4ac)
x₁,₂=
x1==6/6=1
x2==
so
x1=1
x2=
add them both then you get the awnser if the four is not a negative. if the four is a negative use division.
C were Muslims pray hope this helps