Question 457251
*[invoke quadratic "x", 1, -5, 3 ]
4.303 and .697

exact figures.

x%5B1%5D+=+%28-%28-5%29%2Bsqrt%28+13+%29%29%2F2%5C1+
x%5B2%5D+=+%28-%28-5%29-sqrt%28+13+%29%29%2F2%5C1+