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Exercise

$\lim_{x\to4}\left(6x^2-8\right)$

Step-by-step Solution

1

Evaluate the limit $\lim_{x\to4}\left(6x^2-8\right)$ by replacing all occurrences of $x$ by $4$

$6\cdot 4^2-8$
2

Calculate the power $4^2$

$6\cdot 16-8$
3

Multiply $6$ times $16$

$96-8$
4

Subtract the values $96$ and $-8$

$88$

Final answer to the exercise

$88$

Try other ways to solve this exercise

  • Choose an option
  • Solve using L'Hôpital's rule
  • Solve without using l'Hôpital
  • Solve using limit properties
  • Solve using direct substitution
  • Solve the limit using factorization
  • Solve the limit using rationalization
  • Integrate by partial fractions
  • Product of Binomials with Common Term
  • FOIL Method
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$\lim_{x\to4}\left(\frac{2-\sqrt{x}}{4-x}\right)$

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$\lim_{x\to-4}\left(\frac{x+4}{x^2-16}\right)$

Main Topic: Limits by Direct Substitution

Find limits of functions at a specific point by directly plugging the value into the function.

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