Question

Simplify (3 power-7 + 3 power-10) 3power-5

Answer 1

$( {3}^{ - 7} + {3}^{ - 10} ) {3}^{ - 5}$

$( {3}^{ (- 7 ) - ( - 10)} ) {3}^{ - 5}$

${3}^{ - 3} \times {3}^{ - 5}$

${3}^{ - 8}$

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