Question

ПОМОГИТЕ 50 БАЛЛОВ!! ФОТО

Answer 1

$\displaystyle\bf\\3^{\log_{5}3}=a\\\\\\ 125^{\log_{5}^{2} 3 }=\Big((125^{\log_{5} 3 })\Big)^{\log_{5} 3} = \Big((125^{\log_{125} 27 })\Big)^{\log_{5} 3} = \\\\\\=27^{\log_{5}3 } =\Big(3^{\log_{5}3 } \Big)^{3}=a^{3}$