1.check whether the following are Quadratic equations: (v) (2x - 1)(x-3) = (x + 5)(x - 1)
(vii) (x + 2) = 2x (x² - 1)
(vi) x² + 3x + 1 = (x - 2)2
(viii) x2 - 4x - x + 1 = (x - 2)
(vii) (x + 2) = 2x (x² - 1)
(vi) x² + 3x + 1 = (x - 2)2
(viii) x2 - 4x - x + 1 = (x - 2)
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