how do you get the math for 2^3 - 8 /4 x 2+7

Let's use order of operations (PEMDAS)...

 

2^3 - 8 / 4 x 2 + 7

 

First, solve the exponent (E in PEMDAS as there are no parenthases).

 

2^3 = 2 * 2 * 2 = 8

 

Now we have 8 - 8 /4 x 2 + 7.

 

Next, multiply/divide (whichever comes first left to right).

 

8/4 = 2

 

8 - 2 x 2 + 7...

 

2 x 2 = 4

 

8 - 4 + 7

 

Now, add/subtract (again, left to right).

 

8 - 4 = 4

 

4 + 7

 

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