Mathematics, 06.01.2020 04:31, meramera50

Which shows a perfect square trinomial?

50 y squared minus 4 x squared
100 minus 36 x squared y squared
16 x squared + 24 x y + 9 y squared
49 x squared minus 70 x y + 10 y squared

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Which shows a perfect square trinomial?

50 y squared minus 4 x squared
100 minus...