In this video, we will be learning how to solve equations using order of operations.
In this video, we will be learning how to solve equations using the order of operations.
PEMDAS stands for:
Multiplication and division can be interchanged. Whichever of the two comes first.
Same is true for addition and subtraction.
Square root has the same order as the exponent.
While the absolute Value Bars have the same order as the parenthesis.
Let me give you an example.
First, do the operation inside the absolute value bars first.
Some would think that it would be
But it is not.
Here, we should compute the first.
We will come up with
So it will be
And the answer is
Notice that if we keep this
The answer wouldn’t be the same.
Let’s move on to square roots.
We can’t just add these together.
We have to do the Exponent first.
So, it’s going to be
Add these and we’ll have
So there you have it.
Again, treat square root with the same order as exponent.
And absolute value bars with the same order as the parenthesis.