I said, "Oh... cool stair case. Didn't they have something like that on Daily Desmos once?
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I looked, and saw that nobody posted a correct solution yet.
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Expression 9: "f" left parenthesis, "x" , right parenthesis times "g" left parenthesis, "x" , right parenthesisfx·gx
9
Oh!!!! That is really close
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Expression 11: "f" left parenthesis, "m" left parenthesis, "x" , right parenthesis , right parenthesis "g" left parenthesis, "m" left parenthesis, "x" , right parenthesis , right parenthesisfmxgmx
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I experimented with different functions of m until I got it right. Lol.
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Expression 13: "m" left parenthesis, "x" , right parenthesis equals StartRoot, "x" , EndRootmx=x