Solve the following equations transformable to quadratic equations. A. 1. 1 -+-= x 11 2. 2 x+1 4 2 +- 2 x 2 3. x- 3 B. Solve A bus covers a distance of 90 km at a uniform speed. Had the speed been 15 km/hour nmore it would have taken 30 minutes less for the journey. Find the original speed of the bus. a If the difference between a number and its recinrocal is 24/5, find the number. 6

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A: The given expression is 484-4.

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