\"\"

\

The expression is \"\".

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\"\"                      (Substitute x = 23) \ \

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\"\"                                  (Add: 23 + 5 = 28 and 23 + 3 = 26) \ \

\

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

\

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

\

\"\"                                                (Divide: \"\") \ \ \"\"

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Area of the triangle, 364 ft2.