$4^{5} \times 4^{6} = 4$

$3^{6} \times 3^{-7} = 3$

$8^{-2} \times 8^{6} = 8$

$3^{-2} \times 3^{-4} = 3$

$8^{-2} \times 8^{-2} = 8$

$\dfrac{6^{7} }{ 6^{5} } = 6$

$\dfrac{7^{4} }{ 7^{9} } = 7$

$\dfrac{10^{-5} }{ 10^{5} } = 10$

$\dfrac{2^{6} }{ 2^{-6} } = 2$

$\dfrac{7^{-7} }{ 7^{-3} } = 7$

$\left(10^{2}\right)^{2} = 10$

$\left(9^{-4}\right)^{-3} = 9$

$\left(4^{1}\right)^{2} = 4$

$\left(4^{-2}\right)^{6} = 4$

$\left(9^{-1}\right)^{-4} = 9$

$6^{5} \times 8^{5} = $ $ ^{5}$

$3^{7} \times 6^{7} = 18$

$4^{6} \times 6^{6} = $ $ ^{6}$

$10^{6} \times 4^{6} = 40$

$\left(\dfrac{11 }{ 17}\right)^{2} = $ $11$$17$$ $

$\dfrac{21^{6} }{ 7^{6}} = $ $ ^{6}$

$\left(\dfrac{3 }{ 5}\right)^{7} = $ $3$$5$$ $

$\dfrac{15^{2} }{ 5^{2}} = $ $ ^{2}$