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Wich of the following are quadratic equation? 1. (X-1) (X-3) =(X+5) (X-1), 2.3X^2+2×-5=X^2-2×+33.X-3/X=X^24.2(X-2)^2=4X^2=3X^2-5X5.(√2×+√3)^2+X^2=3X^2-5X |
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