a. $$ \lim _{x \rightarrow-1}-10 $$ b. $$ \operatorname{Lim}_{x \rightarrow 2} 2 x^{3}-3 x^{2}+4 x-9= $$

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Calculate or simplify the expression $$ \lim_{x \rightarrow -1} -10 $$.
Evaluate the limit by following steps:
- step0: Evaluate the limit:
  $$\lim _{x\rightarrow -1}\left(-10\right)$$
- step1: Calculate:
  $$-10$$
Calculate or simplify the expression $$ \lim_{x \rightarrow 2} 2x^3-3x^2+4x-9 $$.
Evaluate the limit by following steps:
- step0: Evaluate the limit:
  $$\lim _{x\rightarrow 2}\left(2x^{3}-3x^{2}+4x-9\right)$$
- step1: Rewrite the expression:
  $$\lim _{x\rightarrow 2}\left(2x^{3}\right)-\lim _{x\rightarrow 2}\left(3x^{2}\right)+\lim _{x\rightarrow 2}\left(4x\right)-\lim _{x\rightarrow 2}\left(9\right)$$
- step2: Calculate:
  $$16-12+8-9$$
- step3: Calculate:
  $$4+8-9$$
- step4: Calculate:
  $$12-9$$
- step5: Calculate:
  $$3$$
a. La limitante de $$ -10 $$ cuando $$ x $$ se acerca a -1 es -10.

b. La limitante de $$ 2x^3-3x^2+4x-9 $$ cuando $$ x $$ se acerca a 2 es 3.
a. La limitante de $$ -10 $$ cuando $$ x $$ se acerca a -1 es -10. b. La limitante de $$ 2x^3-3x^2+4x-9 $$ cuando $$ x $$ se acerca a 2 es 3.

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b.

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