[tex] a) \: {3}^{7} \times 3^{14} = 3^{7 + 14} = 3^{21} [/tex]
[tex]b) \: {7}^{18} \div {7}^{12} = {7}^{18 - 12} = {7}^{6} [/tex]
[tex]c) \: ( {13}^{11} )^{3} = {13}^{11 \times 3} = {13}^{33} [/tex]
[tex]d) \: 9^{2} \times {3}^{4} \div 3 = {3}^{4} \times {3}^{4} \div 3 = {3}^{7} [/tex]
e. ( 8 • 2 ÷ 4 )^3 = ( 16 ÷ 4 )^3 = 4^3
