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प्रश्न
Which of the following are quadratic equation in x?
(2x + 3)(3x + 2) = 6(x – 1)(x – 2)
बेरीज
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उत्तर
(2x + 3)(3x + 2) = 6(x – 1)(x – 2)
⇒ 6x2 + 4x + 9x + 6 = 6(x2 – 3x + 2)
⇒ 6x2 + 13x + 6 = 6x2 – 18x + 12
⇒ 31x – 6 = 0
This is of the form ax2 + bx + c = 0
Hence, the given equation is not a quadratic equation.
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