Which expression represents the correct form for the quotient and remainder, written as partial fractions, of 8x? - 2x2 - 67x – 242
2r? - x-21
B
A+ --
*+3
+
28-7
Bx+c
Dx +E
+
x+3
2x - 7
Ax+B+
С
D
+
+3 2x - 7
Cr+D
Ax+B+
+3
21-7

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.

all it means is function 3

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads

you already gave the answer

step-by-step explanation: