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13-07-2017
Mathematics

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Which shows a perfect square trinomial?

50y2 – 4x2
100 – 36x2y2
16x2 + 24xy + 9y2
49x2 – 70

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13-07-2017

Answer is 16x² + 24xy + 9y²

16x² + 24xy + 9y² = (4x+3y)²

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13-07-2017

The only one of these that is a trinomial is option 3
It factors to (4x + 3y)^2

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