Emily is studying forests; she writes the following statistical question. How tall are the trees in the Osceola National Forest?
What makes this a statistical question?
It has only one correct response.
It expects variability in the data.
O
Its answer is expressed as a percentage.
It provides answers about the different species of trees in the forest.

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.

c

step-by-step explanation: