Check whether the following are quadratic equations:
(i) (x – 2)2+ 1 = 2x – 3
(ii) x(x + 1) + 8 = (x + 2) (x – 2)
(iii) x (2x + 3) = x2+ 1
(iv) (x + 2)3= x3– 4
asked Jun 27 12:00:00 AM
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