Question

propriedade das potência de mesma base e transforme noma só potência​

Answer 1

$\displaystyle\mathsf{{\left[\dfrac{7.{7}^{3}.{7}^{-2}}{{(7)}^{5}\div{(7)}^{-5}}\right]}^{4} } \\\displaystyle\mathsf{{\left[\dfrac{{7}^{1 + 3 - 2}}{{(7)}^{5 - ( - 5)}}\right]}^{4} }$

$\displaystyle\mathsf{{\left[\dfrac{{7}^{ 2}}{{(7)}^{5 + 5}}\right]}^{4} } \\ \displaystyle\mathsf{{\left[\dfrac{{7}^{ 2}}{{7}^{10}}\right]}^{4} }$

$\displaystyle\mathsf{{\left[{7}^{ 2 - 10}\right]}^{4} } \\\displaystyle\mathsf{{\left[{7}^{ - 8}\right]}^{4} = {7}^{( - 8).4} = {7}^{ - 32} }$