Mathematics, 13.10.2020 02:01, lwammes

7. All of the following are perfect square trinomials EXCEPT one. Which is it? A. 4x2 + 12xy + 9y2
C. xy2 - 4x2y2 + 4x2y2
B. 9a? - 36a + 36
D. a²b2 + 4a3b + 4a?

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7. All of the following are perfect square trinomials EXCEPT one. Which is it? A. 4x2 + 12xy + 9y2<...