Step 2 Therefore, we have 5x- + 3x + 7 y = - 5X3/2 + 3x1/2 + 7x-1/2. Now, since the function is a sum of power functions, we can use the Power Rule to find its derivati is any real number, is nx 7 1. To use the Power Rule, we'll have to calculate the following. -1 = -1 = N L -1 = Applying the Power Rule we have y' x1/2 + x 1/2 4 x -3/2