Q. Write the expression as a fraction with a positive exponent. u71
Understand the problem: Understand the problem.We need to convert the expression with a negative exponent into a fraction with a positive exponent.
Apply negative exponent rule: Apply the negative exponent rule.The negative exponent rule states that a−n=an1. We will apply this rule to u−7.
Write as a fraction: Write the expression as a fraction.Using the rule from Step 2, we can write u−7 as u71.
Check the result: Check the result.The expression u71 has a positive exponent, as required by the problem. We have successfully converted the expression with a negative exponent into a fraction with a positive exponent.
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