1-2c = -1
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The answer depends on how you parse the sentence; it is either 12(c+4) = 12c + 48 OR 12c + 4
12 pt
4c^2-12c+9 is a trinomial because it is in the form of ax^2 + bx + c. In this case, the trinomial is a perfect square trinomial. 4c^2-12c+9 =(2c-3)(2c-3) =(2c-3)^2
12c + 2b