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19-02-2019
Mathematics

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the expression(x 12) (y-13) (x-5) (y 4) is equivalent to xmxy. what is the value of n?
7
-9
-2
9

Respuesta :

sqdancefan sqdancefan

19-02-2019

Answer:

-9

Step-by-step explanation:

The applicable exponent rule is ...

a^b·a^c = a^(b+c)

___

For the y factor, ...

y^-13 · y^4 = y^(-13+4) = y^-9 . . . . . exponent of -9

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