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guapka [62]
3 years ago
14

Solve:

%7D" id="TexFormula1" title="\underset{x\rightarrow~3}{\lim}~\dfrac{2x^2-18}{x^2-3x}" alt="\underset{x\rightarrow~3}{\lim}~\dfrac{2x^2-18}{x^2-3x}" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
vodomira [7]3 years ago
8 0

Hello, please consider the following.

\displaystyle \lim_{x\rightarrow3}~\dfrac{2x^2-18}{x^2-3x} \\ \\ \\ =\lim_{x\rightarrow3}~\dfrac{2(x^2-3^2)}{x(x-3)} \\ \\ \\ =\lim_{x\rightarrow3}~\dfrac{2(x-3)(x+3)}{x(x-3)} \\ \\ \\ =\lim_{x\rightarrow3}~\dfrac{2(x+3)}{x} \\ \\ \\=\dfrac{2(3+3)}{3}\\ \\ \\=\dfrac{2*3*2}{3} =\Large \boxed{\sf \bf \ 4 \ }

Thank you

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