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18 February, 00:45

Which polynomial is a perfect square trinomial?

49x2 - 28x 16

4a2 - 20a 25

25b2 - 20b - 16

16x2 - 24x - 9

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  1. 18 February, 02:14
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    Assuming the 2nd one is 4a^2 - 20a + 25, it is the one you're looking for. It factors to be (2a-5) ^2
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