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Academics – Mathematics : 2012/DEC/03
Question

Q3. (a) Fig Q3(a) represents a rectangular sheet of metal with 4 equal quadrants, of radius r, removed from the corners. The area of the resultant shape is 1200 cm2.

Calculate the radius of the quadrants. (8)

(b) Determine the value of x, for x > 0, which satisfies the following equation: (8)

(6x + 1)(x - 2)(x + 3) - (2x - 1)(3x + 2)(x - 3) = (6x - 12)

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