From what direction(s) are we approaching the following limits? What value(s) could we plug in to each function to represent the
following limits?
1)
lim
X-2-
2x + 1
2)
lim
X0+
5 + x2
3)
– x3 + 20
X-4-
4)
lim
x-5
1
3x

i will ask my teacherStep-by-step explanation:

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

answer: 7

step-by-step explanation: