a) [tex]25 {}^{37} = (5 {}^{2} ) {}^{37} =( 5 {}^{37} ) {}^{2}[/tex]
b) [tex]4 {}^{75} = ( {2}^{2} ) {}^{75} = ( {2}^{75}) {}^{2} [/tex]
c) [tex]625 {}^{7} = (25 {}^{2} ) {}^{7} = ( {25}^{7} ) {}^{2} [/tex]
d) [tex] {9}^{27} = (3 {}^{2} ) {}^{27} = (3 {}^{27} ) {}^{2} [/tex]
