Q. Select the expression that is equivalent to (7x)−31(7x)3137x1(7x)337x
Understand Rule for Negative Exponents: Understand the exponent rule for negative exponents. A negative exponent indicates that the base should be taken as the reciprocal. So, (7x)−(31) means we take the reciprocal of (7x) raised to the positive 31 power.
Apply Negative Exponent Rule: Apply the negative exponent rule. Taking the reciprocal of (7x) to the positive 31 power, we get (7x)311.
Recognize Meaning of 1/3 Exponent: Recognize the meaning of the 1/3 exponent.The exponent 1/3 corresponds to the cube root. Therefore, (7x)1/3 is the cube root of 7x.
Combine Reciprocal and Cube Root: Combine the reciprocal and cube root.The expression (1)/(7x)(1/3) is equivalent to taking the cube root of 7x and then taking the reciprocal of that result. This gives us the expression (1)/37x.
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