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o-na [289]
2 years ago
13

Let’s explore a quotient raised to an exponent

Mathematics
2 answers:
irakobra [83]2 years ago
8 0
The answer is 216/y^3
Elena-2011 [213]2 years ago
5 0

You can think of exponents as <em>abbreviations for repeated multiplication</em>. By that definition:

\big(\frac{6}{y}\big) ^3 =\frac{6}{y} \times\frac{6}{y} \times\frac{6}{y}

Which, by the properties of fraction multiplication, is the same thing as

\frac{6\times6\times6}{y\times y\times y}

whiiiich, going back to our abbreviations, is the same thing as

\frac{6^3}{y^3}

And since 6³ = 216, our final simplified answer is

\frac{216}{y^3}

The most important discovery in this problem is the property that

\big( \frac{x}{y}\big)^n=\frac{x^n}{y^n}

You could almost say that the exponent gets "distributed" to the numerator and denominator, and in fact, any exponents will have this property of "distributing" across multiplication or division.

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