Adding & Subtractiny Add. 1. 3+(-7)
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You can do this by either synthetic division or long division. I choose synthetic because it's easier. Remember, you need the root to do synthetic division, so for the function, the root is at x = -1. Let's set it up:
-1 | 1 0 -3
<u> -1 1</u>
1 -1 -2
These are the coefficients of our depressed polynomial. The polynomial will have 1 less degree in the answer, and it will look like:
As you can see, the remainder by doing that is -2, but in polynomial form you would write it as: 2/x+1. Hopefully, this makes sense to you!
-1 | 1 0 -3
<u> -1 1</u>
1 -1 -2
These are the coefficients of our depressed polynomial. The polynomial will have 1 less degree in the answer, and it will look like:
As you can see, the remainder by doing that is -2, but in polynomial form you would write it as: 2/x+1. Hopefully, this makes sense to you!