What is the limit as x approaches-1 of x^3+7x-9 ?

The limit as x approaches-1 of x^3+7x-9 is -17

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limit as x approaches-1 of x^3+7x-9

x \to - 1 lim (x^{3} + 7 x - 9)

- 17

Solution steps

x \to - 1 lim (x^{3} + 7 x - 9)

Plug in the value

x = - 1

= (- 1)^{3} + 7 (- 1) - 9

Simplify

(- 1)^{3} + 7 (- 1) - 9 : - 17

= - 17

x \to - \infty lim (x - 3 x^{4})

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x \to 0 lim (1 - 5 x^{3})

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

What is the limit as x approaches-1 of x^3+7x-9 ?
The limit as x approaches-1 of x^3+7x-9 is -17