Philip P. answered • 01/27/15

Affordable, Experienced, and Patient Algebra Tutor

- Operations within
**P**arentheses **E**xponents**M**ultiplications**D**ivisions**A**dditions**S**ubtractions

**Parentheses**:

**multiplication**next:

**addition**:

B. A.

asked • 01/27/154 + (2 + 1)2

I'm not sure where to start.

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Philip P. answered • 01/27/15

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The order in which math operations are performed is PEMDAS:

- Operations within
**P**arentheses **E**xponents**M**ultiplications**D**ivisions**A**dditions**S**ubtractions

4 + (2+1)2

First do the operations within the **Parentheses**:

4 + (2+1)2

4 + (3)2

There are no exponents, so do the **multiplication** next:

4 + 3(2)

4 + 6

Last, do the **addition**:

4 + 6 = 10

Jon P. answered • 01/27/15

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Well, you want to start by understanding what it says.

The "4" is easy. (2+1)2 means take what is inside the parentheses and multiply it by 2.

So the first step is to simplify what's inside the parentheses. So change (2+1) to (3).

4 + (2 + 1)2 = 4 + (3)2

When you have additions and multiplications together in the same expression, you always do multiplications first. So you would then change this to:

4 + 6.

Now just add the 4 and 6 together.

Dianala B. answered • 01/27/15

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4 + (2 + 1)2

Consider PEMDAS rules

4 + (4 + 2)

4 + 6

10

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