Question 939578
let width be x meters
length  = 2+x
area = 48 m^2
formula: area  = length x width
        48 = (2+x)*x
        48= 2*x+x*x
         {{{48= 2x+x^2}}} 
        move 48 to the right
  {{{0=2x+x^2-48}}}
      {{{ x^2+2x-48=0}}}
*[invoke quadratic "x", 1, 2, -48 ]
  x cannot be negative
  hence x= 6 
width (x)=  6 m
 length  = 6+2 = 8 m