Question

x^2-2x-1=0

-0.41, 2.52

-0.41, 2.41

-0.56, 2.52

-0.56, 2.41

Answer 1

familiar with quadratic formula?

Answer 2

not really

Answer 3

x = [ -b ± sqrt(b^2 - 4ac) ] / 2a
a = 1 ,b = -2 , c=-1
just plug in the values u will get 2 values of x