Question 909856
(2x-1)^2 + x^2 = 39
4x^2 - 4x + 1 + x^2 = 39
5x^2 - 4x - 38 = 0 
x = 3.18567765543682, -2.38567765543682
find corresponding values for (2x-1)to determine the number pairs.
 *[invoke quadratic "x", 5,-4,-38]