−16C9x5-{ }^{16} C_{9} x^{5}−16C9x5
16C8x8{ }^{16} C_{8} x^{8}16C8x8
−16C7x2-{ }^{16} \mathrm{C}_{7} \mathrm{x}^{2}−16C7x2
−16C7x11-^{16} \mathrm{C}_{7} \mathrm{x}^{11}−16C7x11