![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
Order of Operations - (PEMDAS):
\To simplify the expression follow the order of operations.
\1. Evaluate the expressions inside the Parenthesis/Brackets (P).
\2. Evaluate Powers/Exponents (E).
\3. Multiply and/or Divide in order from left to right (MD).
\4. Add and/or Subtract in order from left to right (AS).
\A simple technique for remembering the order of operations is turned
\into phrase "Please Excuse My Dear Aunty Sally".
\
The expression is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b8fc478993318d60f45693cff17d25fb.png\")
.
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=113b004aee312218d0b9380d944f1969.png\")
(Substitute ![\"\"](\"plugins/fckeditor_wiris/integration/showimage.php?formula=940cbc72cc388525a531d893965f833c.png\")
)
Product of two same sings is positive.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=66d509c36123e160430c1ce66bc295d9.png\")
Simplify the expression uisng order of operations (PEMDAS).
\Since there are no parentheses and powers, first operation is multiplication.
\![\"\"](\"plugins/fckeditor_wiris/integration/showimage.php?formula=580cd7a7fe3b66411900b80f52320294.png\")
\
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3dc763e69dc5584b9f49527518d59002.png\")
![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
Next operation is subtraction.
\![\"\"](\"plugins/fckeditor_wiris/integration/showimage.php?formula=3dc763e69dc5584b9f49527518d59002.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=cde633734bc714ba49725a8260950284.png\")
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
The value of the expression is 16.