The expression is .
(Substitute )
(Two same sides is positive)
= 2.25 (Multiply: )
The value of the expression is 2.25.
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(Substitute ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e58d323a2486d4639b4030646972687e.png\")
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