Check whether the following are quadratic equations: (i) (x+1)^2 = 2(x-3) (ii) x^2 - 2x = (-2)(3-x) (iii) (x-… — Quest4Learn

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Mathematics Quadratic Equations

Check whether the following are quadratic equations:

(i) $(x + 1)^{2} = 2 (x - 3)$
(ii) $x^{2} - 2 x = (- 2) (3 - x)$
(iii) $(x - 2) (x + 1) = (x - 1) (x + 3)$
(iv) $(x - 3) (2 x + 1) = x (x + 5)$
(v) $(2 x - 1) (x - 3) = (x + 5) (x - 1)$
(vi) $x^{2} + 3 x + 1 = (x - 2)^{2}$
(vii) $(x + 2)^{3} = 2 x (x^{2} - 1)$
(viii) $x^{3} - 4 x^{2} - x + 1 = (x - 2)^{3}$

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