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jolli1 [7]
4 years ago
13

Simplify 9xºy-3 Write your answer using only positive exponents.

Mathematics
1 answer:
Sergeu [11.5K]4 years ago
8 0

Answer:

we conclude that:

\:9x^0y^{-3}=\frac{9}{y^3}

Step-by-step explanation:

Given the expression

9x^0y^{-3}

Apply exponent rule:    a^{-b}=\frac{1}{a^b}

\:9x^0y^{-3}=9\cdot \:\frac{1}{y^3}x^0

Apply rule:   a^0=1,\:a\ne \:0

             =9\cdot \:1\cdot \frac{1}{y^3}

Multiply fractions:   a\cdot \frac{b}{c}=\frac{a\:\cdot \:b}{c}

              =1\cdot \frac{1\cdot \:9}{y^3}

Refine

               =\frac{9}{y^3}

Thus, we conclude that:

\:9x^0y^{-3}=\frac{9}{y^3}

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