Question 846049
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Hi
 2L + 3w = 100   0r   w = (100-2L)/3
  {{{L((100-2L/3)) = 350m^2}}}
  {{{L(100-2L) = 1050m^2}}}
    2L^2 - 100L + 1050 = 0
     L^2 - 50L + 525 = 0
      (L-35)(L-15) = 0,  L = 15,35  and w = 70/3, 10
CHECKING our answer***
 2*15 + 3(7/3) = 100m of fencing 
 2*35 + 3*10 = 100m  of fencing 
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