Answers

2016-06-03T01:23:09+08:00
    let   x   = the smaller number
           y  =   the bigger number
     for the product  x*y to be maximum,
       the difference    y-x must be minimum
        y +x  = 36
    so    y =  19  &      x  =  17    / a minimum difference of   2
     also       x * y²    = 17 * 19²    will get a maximum value
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