Answer
$-12$
Work Step by Step
RECALL:
(i) $\dfrac{a^m}{a^n} = a^{m-n}$
(ii) $a^0=1, a\ne0$
Divide the coefficients, and then use the rule above to obtain:
$=-12x^{5-5}
\\=-12x^{0}
\\=-12(1)
\\=-12$
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