[tex] a){7}^{14} \times {7}^{31} = {7}^{14 + 31} = {7}^{45} [/tex]
[tex]b) {16}^{11} \times {16}^{22} = {16}^{11 + 22} = {16}^{33} [/tex]
[tex]c) {3}^{3} \times {3}^{8} = {3}^{3 + 8} = {3}^{11} [/tex]
[tex]d) {2}^{21} : {2}^{21} = {2}^{21-21} = {2}^{0} = 1 [/tex]
[tex]e) {75}^{11} : {75}^{81} = {75}^{11 - 81} = {75}^{ - 70} = \frac{1}{ {75}^{70} }[/tex]
[tex]f) {3}^{25} : {3}^{18} = {3}^{25 - 18} = {3}^{7} [/tex]
