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Where is the order of operations to simplify the following expression

User Jpnavarini
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1 Answer

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You have the next expression:


9+\sqrt[]{81}-4\cdot2

The order of operations is:

1. Multiplications and divisions (left to right)

2. Addition and substraction (left to right)

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As you have a square root this is the first operation:

As 81 is a perfect square you know that:


\sqrt[]{81}=9
9+9-4\cdot2

Then, You make the multiply of (4*2)


9+9-8

And finally you make the additions and substractions:


9+9-8=10

User Nishith Singh
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