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laws of exponents applied to negative exponents |
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Answer» Negative Exponent Rule: This says that negative exponents in the numerator get moved to the denominator and become positive exponents. Negative exponents in the denominator get moved to the numerator and become positive exponents. Only move the negative exponents. A negative exponent means to divide by that number of factors instead of multiplying. So 4^−3 is the same as 1/(4^3), and x^-3 = 1/x^3. As you know, you can’t divide by zero. So there’s a restriction that x^−n = 1/x^n only when x is not zero. When x = 0, x^−n is undefined. |
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