Question

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

7
-9
-2
9

Answer 1

-9

Explanation:

The applicable exponent rule is ...

a^b·a^c = a^(b+c)

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For the y factor, ...

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