how do i find the number of real number solutions to an equation if there is no b value? All the equations I know for finding this need a b value.
I need help becauuse i have a test retake tomorrow, got a 71 first time, really dont want to screw this up please help
example problem: -4=x^2-5
additional problem on my test retake i dont know answer to: -4=x^2+2x