algebra

Simplify. Do not use negative exponents in the answer.

12x-2y4
-3xy-7
There should be a line between like a fraction but it did not copy or paste.

This is the answer I got
12 x^-2 y^4 = 12y^4/x^2
-3xy^-7 = -3x/y^7

it was wrong.

12x^-2y^4 / -3xy^-7
= 12/-3 * x^-2 / x * y^4/y^-7
If you have a base with negative exponent, you move to the other side of the fraction bar to make it positive.
= -4 1/x^2 x * y^4 y^7/1
When you multiply exponents with bases, you add the exponents. Now you similfy it to get the final answer.
Please help. This is my last class to graduate and I have been trying to figure it out for two days. Thanks

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  1. 12 x^-2 y^4 /{ -3 x (y^-7) } ??
    is
    -4 x^-3 y^11

    = -4 y^11/x^3

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  2. HEY, you were almost there!

    -4 1/x^2 x * y^4 y^7/1

    -4 *1/(x^2*x) * y^(4+7)

    = -4 y^11/x^3

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