2x^2 + x – 1 = 9
does it have any real solutions? if so what are they?

2x^2 + x – 1 = 9
2x^2+x-1-9=0
2x^2+x-10=0
a=2
b=1
c=-10

Delta=b^2-4ac
Delta=1-4*2*(-10)
delta=1+80
delta=81
rad 81=9

x1=-b-rad 81 /2a
x1=-1-9/2*2
x1=-10/4
x1=-5/2

x2=-b+rad 81 /2a
x2=-1+9/2*2
x2=8/4
x2=2

Many things that seem threatening in the dark become welcoming when we shine light on them