• sunbather@beehaw.org
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    11 months ago

    8÷2(2+2)=2(2+2)÷2(2+2)

    alternatively if 8÷2(2+2)=16 that means 2(2+2)=8÷16 in other words 8=0,5 which it isnt

    • rasensprenger@feddit.de
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      11 months ago

      your first line is correct, but while it looks like 1 (and it might be under different conventions), evaluating according to standard rules (left to right if not disambiguated by pemdas) yields

      2(2+2)/2(2+2) = 2(4)/2(4) = 2*4/2*4 = 8/2*4 = 4*4 = 16

      Using implicit multiplication in quotients is weird and really shouldn’t happen, this would usually be written as 8/(2*(2+2)) or 8/2*(2+2) and both are much clearer

      Your second argument only works if you treat 2(2+2) as a single “thing”, which it looks like, but isn’t, in this case