Given the polynomial function x4 - 5x2 + 4, find the following: its possible zeroes. its upper boundary. its lower boundary. its zeroes. its remainder if the polynomial is divided by x - 7. its graph? B. 10 8 6 4 2 -2 -4 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 20 15 10 W 5 0 -5 -10 -15 -20 W T > ♦ C 46 " and O