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Check whether the following are Quadratic equations(x − 3)(2x + 1) = x(x + 5) |
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Answer» (x - 3)(2x + 1) = x(x + 5) ⇒ 2x2 - 5x - 3 = x2 + 5x ⇒ x2 - 10x - 3 = 0 It is of the form ax2 + bx + c = 0. Hence, the given equation is quadratic equation. |
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