(x^2 -9)/(x^2-6x+5) How many times does this cross the x-axis? Not sure what to do with this - any help or hints greatly appreciated. Thanks.
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Hello, Originally Posted by sad_student (x^2 -9)/(x^2-6x+5) How many times does this cross the x-axis? Not sure what to do with this - any help or hints greatly appreciated. Thanks. $\displaystyle \frac{x^2-9}{x^2-6x+5}=0 \Longleftrightarrow x^2-9=0$ Can you take it from here ?
Thanks a lot
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