Tolong ya….pake caranya

3) p² – ½p + 5
a = (-4)² – ½(-4) + 5 = 16 + 2 + 5 = 23
b = (¾)² – ½(¾) + 5 = 9/16 – 3/8 + 5 = 9/16 – 6/16 + 5 = 5 3/16