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\[\lim_{x \to 4} \frac{x^2 - 7x + 12}{x^2 - 3x - 4}\]
Concept: undefined >> undefined
\[\lim_{x \to 2} \frac{x^4 - 16}{x - 2}\]
Concept: undefined >> undefined
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\[\lim_{x \to 5} \frac{x^2 - 9x + 20}{x^2 - 6x + 5}\]
Concept: undefined >> undefined
\[\lim_{x \to - 1} \frac{x^3 + 1}{x + 1}\]
Concept: undefined >> undefined
\[\lim_{x \to 5} \frac{x^3 - 125}{x^2 - 7x + 10}\]
Concept: undefined >> undefined
\[\lim_{x \to \sqrt{2}} \frac{x^2 - 2}{x^2 + \sqrt{2}x - 4}\]
Concept: undefined >> undefined
\[\lim_{x \to \sqrt{3}} \frac{x^2 - 3}{x^2 + 3 \sqrt{3}x - 12}\]
Concept: undefined >> undefined
\[\lim_{x \to \sqrt{3}} \frac{x^4 - 9}{x^2 + 4\sqrt{3}x - 15}\]
Concept: undefined >> undefined
\[\lim_{x \to 2} \left( \frac{x}{x - 2} - \frac{4}{x^2 - 2x} \right)\]
Concept: undefined >> undefined
\[\lim_{x \to 1} \left( \frac{1}{x^2 + x - 2} - \frac{x}{x^3 - 1} \right)\]
Concept: undefined >> undefined
\[\lim_{x \to \sqrt{3}} \frac{x^4 - 9}{x^2 + 4\sqrt{3}x - 15}\]
Concept: undefined >> undefined
\[\lim_{x \to 2} \left( \frac{1}{x - 2} - \frac{2}{x^2 - 2x} \right)\]
Concept: undefined >> undefined
\[\lim_{x \to 1/4} \frac{4x - 1}{2\sqrt{x} - 1}\]
Concept: undefined >> undefined
\[\lim_{x \to 4} \frac{x^2 - 16}{\sqrt{x} - 2}\]
Concept: undefined >> undefined
\[\lim_{x \to 0} \frac{\left( a + x \right)^2 - a^2}{x}\]
Concept: undefined >> undefined
\[\lim_{x \to 2} \left( \frac{1}{x - 2} - \frac{4}{x^3 - 2 x^2} \right)\]
Concept: undefined >> undefined
\[\lim_{x \to 3} \left( \frac{1}{x - 3} - \frac{3}{x^2 - 3x} \right)\]
Concept: undefined >> undefined
\[\lim_{x \to 1} \left( \frac{1}{x - 1} - \frac{2}{x^2 - 1} \right)\]
Concept: undefined >> undefined
\[\lim_{x \to 3} \left( x^2 - 9 \right) \left[ \frac{1}{x + 3} + \frac{1}{x - 3} \right]\]
Concept: undefined >> undefined
\[\lim_{x \to 1} \frac{x^4 - 3 x^3 + 2}{x^3 - 5 x^2 + 3x + 1}\]
Concept: undefined >> undefined
