\"\"

\

The expression is \"\".

\

\"\"   (Substitute \"\")

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\"\"         (Product of two same signs is positive)

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\"\"               (Add: \"\")\"\"

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\"\"                  (Subtract: \"\")

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\"\"                      (Absolute value of \"\")

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\"\"                                 (Multiply: \"\")

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\"\"                                           (Add: \"\")\"\"

\

The simplified expression value is 0.4.