Here is a straightforward method to utilize the quadratic formula on a sorted array: Starting with a sorted array: arr[] = {1, 2, 3, 4, 5} First, we will apply the quadratic formula to each element in the array. For this example, we will use a basic quadratic equation: x^2 + x + 1. The application of the quadratic formula for each element will appear as follows: -1 ± √(1 - 4(1-x)) / 2(1) After applying the quadratic formula, the updated values of arr[] will be {-0.5, 0.5, 1.5, 2.5, 3.5}. As you can see, the array remains sorted even after the quadratic transformation.