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taskmasters
For the given expression X² -3X + n and it is a perfect square trinomial.
The perfect square trinomial is in forms below:
(a-b)²
(a+b)²
When we assign n=9/4, we will have the equation below:
X² - 3X +9/4
=(X-(3/2))²

Therefore, the answer is "9/4".

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