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anonymous

  • 4 years ago

Multiply the expressions, and simplify. (-10x^-5y^-2) · (-9x^-4y)

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  1. precal
    • 4 years ago
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    I do not think you wrote the problem correctly. Please use the equation key on the lower left to input

  2. anonymous
    • 4 years ago
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    \[(−10x ^{-5} y ^{-2} )⋅(−9x ^{-4})\]

  3. Mertsj
    • 4 years ago
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    \[90x ^{-9}y ^{-2}= \frac{90}{x ^{9}y ^{2}}\]

  4. Mertsj
    • 4 years ago
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    is this the problem you wanted help with?

  5. Mertsj
    • 4 years ago
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    Also is there supposed to be a y after the x^-4?

  6. anonymous
    • 4 years ago
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    yes sorry

  7. anonymous
    • 4 years ago
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    there is a y after that

  8. Mertsj
    • 4 years ago
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    So then the answer is :\[\frac{90}{x ^{9}y}\]

  9. anonymous
    • 4 years ago
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    90x^-1y^-3 90(xy)^-10 10x-^9y^-1 90x^-9y^-1 this are the ansers it gave me

  10. Mertsj
    • 4 years ago
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    Well, the answer I gave you is the same thing. They just wrote theirs with negative exponents. If you move x^9 to the numerator, it will be x^-9. if you move y^1 to the numerator, it will be y^-1

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