What is the limit as x approaches-2 of 3x^3-x-1 ?

The limit as x approaches-2 of 3x^3-x-1 is -23

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limit as x approaches-2 of 3x^3-x-1

x \to - 2 lim (3 x^{3} - x - 1)

- 23

Solution steps

x \to - 2 lim (3 x^{3} - x - 1)

Plug in the value

x = - 2

= 3 (- 2)^{3} - (- 2) - 1

Simplify

3 (- 2)^{3} - (- 2) - 1 : - 23

= - 23

x \to 3 lim (15)

h \to 0 lim (\frac{( 2 + h ) ^{3} - 4}{h})

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x \to 2 lim (e^{x - 2})

x \to 4 lim (x^{2} - 2 x)

What is the limit as x approaches-2 of 3x^3-x-1 ?
The limit as x approaches-2 of 3x^3-x-1 is -23