4. Please show your work. Thank you

Find the absolute maximum and minimum values of the following function over the indicated interval, and indicate the x-values at which they occur. f ( x ) = 5 X" + x2 - 4x + 8, [ -6,3] The absolute maximum value is 26.67 at x = -4 (Use a comma to separate answers as needed. Round to two decimal places as needed.) The absolute minimum value is at x - (Use a comma to separate answers as needed. Round to two decimal places as needed.)