$5^{5} \times 5^{7} = 5$

$8^{7} \times 8^{-5} = 8$

$7^{-4} \times 7^{7} = 7$

$10^{-2} \times 10^{-5} = 10$

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

$\dfrac{5^{7} }{ 5^{4} } = 5$

$\dfrac{7^{6} }{ 7^{8} } = 7$

$\dfrac{9^{-3} }{ 9^{2} } = 9$

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

$\dfrac{5^{-3} }{ 5^{-7} } = 5$

$\left(7^{6}\right)^{-1} = 7$

$\left(8^{-3}\right)^{-4} = 8$

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

$\left(9^{-5}\right)^{5} = 9$

$\left(5^{-2}\right)^{-5} = 5$

$7^{6} \times 9^{6} = $ $ ^{6}$

$3^{2} \times 4^{2} = 12$

$4^{3} \times 9^{3} = $ $ ^{3}$

$7^{2} \times 5^{2} = 35$

$\left(\dfrac{13 }{ 7}\right)^{2} = $ $13$$7$$ $

$\dfrac{22^{6} }{ 11^{6}} = $ $ ^{6}$

$\left(\dfrac{17 }{ 3}\right)^{3} = $ $17$$3$$ $

$\dfrac{21^{3} }{ 7^{3}} = $ $ ^{3}$