25 x 2 = 50
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It is: (5x-1)(5x+1) = 0 when factored
It is 25x2 which equals 50m
Factorises as (5x-2)(5x-2) so x = 0.4 25x2= 4, -20x = -8 4 - 8 + 4 = 0
252-70x+49 = (5x-7)(5x-7) when factored
so, the formula is Length times 2 plus Width times 2 equals perimeter or Lx2+wx2=P 25x2+25x2 50+50=100 so, your answer would be 100