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# Limit x->infinity (sqrt 9x^2 + x -3x)

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Limit x->infinity (sqrt 9x^2 + x -3x)

Guest Feb 21, 2017
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Limit x->infinity (sqrt 9x^2 + x -3x)

$$\displaystyle\lim_{ x\rightarrow \infty}(\sqrt 9x^2 + x -3x)\\ =\displaystyle\lim_{ x\rightarrow \infty}(3x^2 -2x)\\ =\displaystyle\lim_{ x\rightarrow \infty}(3x^2 -2x)\\ =\infty$$

Here is the graph, (y=3x^2-2x)you can see that as x grows larger so does y.

Melody  Feb 21, 2017

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