Question

evaluate the limit: $lim_{x
ightarrow - 1}6x^{4}-7x$

Explanation:

Step1: Substitute $x = - 1$ into the function

We have the function $f(x)=6x^{4}-7x$. Substitute $x=-1$ into it: $6(-1)^{4}-7(-1)$.

Step2: Simplify the expression

First, calculate $(-1)^{4}=1$. Then $6(-1)^{4}-7(-1)=6\times1 + 7$.
$6\times1+7=6 + 7=13$.

Answer:

$13$