The Smiths are on a summer road trip. They travel 10.9 hours the first day. 8.6 hours the second day and 12.4 hours the final da
2 answers:
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Because which numbers will make the expessions undefined. We will focus on the denominator only.
Factor the terms.
Now which 2 numbers that will make these terms become 0?
12 and - 1 of course.
So these 2 numbers that will make the expressions undefined are 12 and - 1
