Answer: No
Step-by-step explanation:

Replace x for 5 and -7 separately.


Answer:
Total Fencing Cost =$19.57
Step-by-step explanation:
If Rosalina is planning on fencing, we are talking about the Perimeter of the Flower Bed
Radius of the circular flower bed =3.5 ft
Perimeter = 
If Wire fencing Cost $0.89 per foot
Total Fencing Cost = $0.89 X 21.99=$19.57
Firstly expand (x - 3)(ax^2 + bx + c):
ax^3 + bx^2 + cx - 3ax^2 - 3bx - 3c
Now rearrange it so that it's in the form ax^3 + bx^2 + cx + d:
ax^3 + (b-3a)x^2 + (c-3b)x - 3c
Now we can compare both equations:
ax^3 + (b-3a)x^2 + (c-3b)x - 3c = 2x^3 - x^2 - 19x + 12
We get:
(1) a = 2
(2) b - 3a = -1
(3) c - 3b = -19
(4) -3c = 12
If we substitute (1) into (2) we get:
b - 3*2 = -1
b - 6 = -1
b = 5
Now if we solve (4) we get:
-3c = 12
c = -4
Therefor a = 2, b = 5 and c = -4
Answer:
x = 1/5 or x=0.2
Step-by-step explanation:
isolate the variable by dividing each side by factors that dont contain the variable.