(b) A rectangle has length 2xcm, perimeter 18 cm and area 10cm².
(1) Show that 2.x2 - 9x + 5 = 0.
(ii). Solve 2x2 - 9x + 5 = 0, giving your answers correct to 2 decimal places.
(lin) Find the difference between the length and the width of the rectangle
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