Which one of the following is nota perfect square trinominal?a)25a^2 + 30 ab +9b^2b)36a^2 +84ab + 49b^2c) 64a^2 - 16ab +b^2dy 36 a^2 - 42ab + 49b^2
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ডপডগুজিিদহহিজহিডগুডগিডহিড৮িড৮িড৮ি24564! 57!4?343464646464975555❓❓❓❓❓❓❌❌❌❌❌❌❌❌❌❌❌❌️️
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