Answer :

By laws of exponent,


xm ÷ xn = xm-n


In this question,


m = 7


n = 12


xm ÷ xn = xm-n


x7 ÷ x12 = x7-12


x7 ÷ x12 = x-5


Hence, for a non-zero integer x, x7 ÷ x12 is equal to x-5.

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