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Mathematics, 25.11.2021 08:50 alexandraparava

Which of the following is a perfect square trinomial? A. x²-6x+9
B. 4x²-20x-25
C. 4x²+20xy+9y2
D. 9a²-6a²bc+a²b²c²

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Which of the following is a perfect square trinomial? A. x²-6x+9
B. 4x²-20x-25
C. 4x²+20...

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