it is ok in some occasains but you might want to retry the problem
yes
the order of operations
If you change the order of operations, you will get a different result. The person who wrote the expression had a specific order of operations in mind (using generally-accepted rules), so arbitrarily using some other order of operations is, quite simply, wrong.
Order of Operations
Parentheses.
The order of operations is: P (parentheses) E (Exponents) M (Multiply) D (Divide) A (Add) S (Subtract)
They can be performed in either order.
The remainder must be less than the divisor, otherwise you are not doing the division correctly.
Order of operation means that you go from the left of your equation to the right always doing multiplication and division first and then addition and subtraction
How is doing operations (adding, subtracting, multiplying, and dividing) with rational expressions similar to or different from doing operations with fractions?If you know how to do arithmetic with rational numbers you will understand the arithmetic with rational functions! Doing operations (adding, subtracting, multiplying, and dividing) is very similar. When you areadding or subtracting they both require a common denominator. When multiplying or dividing it works the same for instance reducing by factoring. Operations on rational expressions is similar to doing operations on fractions. You have to come up with a common denominator in order to add or subtract. To multiply the numerators and denominators separated. In division you flip the second fraction and multiply. The difference is that rational expressions can have variable letters and powers in them.
If you put in parentheses, you can change the order of operations in many cases, as parentheses come before everything in the order of operations.
It means that the calculator can follow the order of operations and do the order of operations for you but, you need to know how to do them on your own too.
yes
Because if you did operations in an impermissible order, or violated laws of operations, then your solution to the equation is wrong.
Because if you perform the operations in a different order your answer will be wrong.
We have to use the order of operations so everyone solves a problem the same.
Can all calcuator solve order of operations