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प्रश्न
Which of the following is a quadratic equation ?
पर्याय
(A) 6x2 = 20 - x3
(B) `x^2(1/x-2) = 72`
(C)` 3/x - 3 = 4x^2`
(D) 5x + 7 = 3x
उत्तर
(B) `x^2(1/x-2) = 72`
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