Answer:
[tex]4d^{2}[/tex]
Step-by-step explanation:
Divide the numbers like usual:
12/3 = 4
Note that when you divide powers with common base, you are actually subtracting the power:
[tex]\frac{d^{4} }{d^{2} } = d^{4 - 2} = d^{2}[/tex]
Combine the two for your answer:
[tex]4d^{2}[/tex] is your answer.
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