Slightly Complicated

Remember PEMDAS

 

Parenthesis

Exponents

Multiplication

Division

Addition

Subtraction

 

25 - (3^2 + 2 * 5)

 

Do what's in the parenthesis first.

 

3^2 + 2 * 5

 

Do exponents next.

 

3^2 = 9

 

Multiplication/Division after that.

 

2 * 5 = 10

 

Finally, addition.

 

9 + 10 = 19

 

Now, we have finished up what it inside the parenthesis. We can now look at the whole problem.

 

25 - 19 = 6

 

Your final answer is 6