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how do you simplify t^-(2/7 ) into radical form. can you show step by step?

i am learning how to solve radicals and rational exponents for honors algebra 2. i am so cofused
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2 Answers

Quan has a good explanation.
Here's two ways you can write the answer:
1 /( 7√(t2))  
1 / (7√t)2
When you see a negative exponent that mean it is 1/t(2/7)
Next step, with the fraction exponent, the numerator is the power and the denominator is the root.
For example t(3/4) means that 4th-root(t3)
Hope it helps.