its an equaton
Determine the roots of the equation x^2+2x-5=0
x= 2.9 x= -6.9
use -the quadratic equation to solve -b+ (the square root of b - 4ac) /(2a)
substitute the numbers from the given equation into this equation and solve.
b=2 , a=1 c= -5
Use the quadratic formula!
-2±√(-16)) / (2)
=-1+ 4i and =-1 - 4i