Quadratic formula is -b+_ √b^2-4ac / 2a
In that equation,
a=1
b=4
c=-5
So put these informations to quadratic formula,
-4+_ √16-4*1*-5 / 2
= -4+_ √16+20 / 2
= -4+_ √36 / 2
= -4+_6 / 2
To calculate this, the answers are
-4+6 / 2 and -4-6 / 2
2 / 2 and -10 / 2
So answers are 1 and -5
1, -5