On the roots of equations and zeros of functions If the square-x-1 = 0 of equation 2aX has exactly one solution in (0,1), then what is the value range of a?

On the roots of equations and zeros of functions If the square-x-1 = 0 of equation 2aX has exactly one solution in (0,1), then what is the value range of a?

Let f (x) = 2aX ^ 2-x-1
When a = 0, it is obviously not suitable
When a ≠ 0, then
f(0)·f(1)=-1×(2a-2)