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At the end of the first example, I used a closed circle for 7/2. It should have been an open circle as previously discussed.
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* In the 2nd and 4th examples here the interval notation was correct but I shaded the interval between the x-intercepts on the number line instead of to the left of the leftmost and to the right of the rightmost! * In the 4th example, I said that the function was not factorable. I should have said "was not easily factorable!.
The following video is being made available with closed captioning at:
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