SOLUTION: Simplify the following expressions using PEMDAS. 2 + 3 � 52 - 7 6 + 3[(12 / 4) + 5] (4 / 2) + 4(5 - 2)2 -8 - 81 / 9 � 22 + 7 Write the detailed steps for simplifying each

Question 142016: Simplify the following expressions using PEMDAS.
2 + 3 � 52 - 7
6 + 3[(12 / 4) + 5]
(4 / 2) + 4(5 - 2)2
-8 - 81 / 9 � 22 + 7
Write the detailed steps for simplifying each expression. Discuss the advantages of using PEMDAS in simplifying an expression. Also, compare and discuss how you can have different answers to the same expressions with or without the application of the PEMDAS rule.

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Simplify the following expressions using PEMDAS.
2 + 3 � 52 - 7
Comment: What is happening between 3 and 52 ?
-----------------------
6 + 3[(12 / 4) + 5]
= 6 + 3[3+5]
= 6 + 3[8]
= 6 + 24
= 30
-----------------
(4 / 2) + 4(5 - 2)^2
= (2) + 4(3)^2
= 2 + 4(9)
= 2 + 36
= 38
---------------
-8 - 81 / 9 � 22 + 7
Comment: What is happening between 9 and 22 ?
====================
Cheers,
Stan H.

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