I believe that, in the absence of parentheses, the order of applying operations is as follows (from first to last):
1. exponentiation;
2. multiplication and division;
3. addition and subtraction.
I should say I am not 100 % sure this answer is correct.
addition
Multiplications and divisions from left to right.
Anything within parentheses should be calculated first.
PEMDAS is the order of operations which explains how problems are to be solved. The P stands for parentheses, ( ), ; parentheses are to be performed first if any. The E stands for exponents, n^n, (being raised to a certain power) is then performed. The M stands for multiplication, * or x, and this is then performed. The D stands for division, /, and this is then performed. Multiplication and division are performed in the order read (left to right); what comes first is solved first as long as it is after parentheses and exponents. The A stands for addition, +; which follows. The S stands for subtraction, -, then performed. The same rules for multiplication and division apply for addition and subtraction. Although addition is listed first, problems are solved in the order they are read as long as PEMDAS is followed. Therefore, -9 * -8 - 16 = 56. Multiplication is read first in -9 * -8 to equal 72. This is then subtracted by 16 to get 56.
You ALWAYS do whats in the brackets first! If there are parentheses in the bracket, you do the parentheses in the brackets first GLAD I COULD HELP :)
addition
i think exponents? remember, PEMDAS?
Multiplications and divisions from left to right.
It depends on the molecule! If you have a molecular formula for a molecule and the formula does not contain parentheses, you can find the number of atoms in it by adding all the subscripts, treating no subscript as the number 1. If the formula does contain parentheses, first multiply any subscript within the parentheses by the subscript at the end of the parentheses, then add these modified numbers to those of any other atoms in the formula that are not in parentheses.
Anything within parentheses should be calculated first.
PEMDAS is the order of operations which explains how problems are to be solved. The P stands for parentheses, ( ), ; parentheses are to be performed first if any. The E stands for exponents, n^n, (being raised to a certain power) is then performed. The M stands for multiplication, * or x, and this is then performed. The D stands for division, /, and this is then performed. Multiplication and division are performed in the order read (left to right); what comes first is solved first as long as it is after parentheses and exponents. The A stands for addition, +; which follows. The S stands for subtraction, -, then performed. The same rules for multiplication and division apply for addition and subtraction. Although addition is listed first, problems are solved in the order they are read as long as PEMDAS is followed. Therefore, -9 * -8 - 16 = 56. Multiplication is read first in -9 * -8 to equal 72. This is then subtracted by 16 to get 56.
You ALWAYS do whats in the brackets first! If there are parentheses in the bracket, you do the parentheses in the brackets first GLAD I COULD HELP :)
Parentheses.
Brackets are basically the same as parentheses. If they are inside of parentheses, then you simplify that term before anything else. If they are outside of parentheses, then you simplify the terms in the parentheses first and then the term within the brackets.
First, you open the parentheses, using the distributive property.Then you can combine like terms (the ones that contain the variables "mn").
It assures that whatever operation is contained within the parentheses will be carried out first.
1,2,3and5