কোনটি অভেদ?

Created 1 year ago | Updated 4 days ago
(ক) x2+ 5x + 6 = 0
(খ) a2– 10a + 9 = 0
(গ) 4x + 5 = 9
(ঘ) (p + q)2 = p2 + 2pq + q2
No explanation available.

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