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A. Let x and y be two real numbers such that y - 2x = 20 and (3 - x)(y + 2) is a maximum. Find x and y. B. Suppose that one o
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Solution Grun, 2n =20 Let y-2n (3-x) (y+2) is maximum. 2= (3-2)(y+2) 2 = (3-1) (21 +20+2) from y = 2n+20 z = (3x) (2x + 22) 6

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