-(one + (two *x - one)^ two /(four *x*(one - x)))/sqrt(x*(one - x)) = zero
minus (1 plus (2 multiply by x minus 1) squared divide by (4 multiply by x multiply by (1 minus x))) divide by square root of (x multiply by (1 minus x)) equally 0
minus (one plus (two multiply by x minus one) to the power of two divide by (four multiply by x multiply by (one minus x))) divide by square root of (x multiply by (one minus x)) equally zero