Hello,
Dividing by 0 is not defined so let s take x different from 4 and -4 and then we can write:
As

Thanks
I think it is because they are both different differences
Answer:
r = 18/pi
or approximately 5.7325 inches
Step-by-step explanation:
The circumference is given by
C = 2*pi*r
36 = 2*pi*r
Divide each side by 2 pi
36/(2pi) = r
18/pi = r
Letting pi = 3.14
18/3.14
5.732484076 = r
Well the best answer for LCD is

is 5(x+3y) and the best answer for LCD is

is 2(x+3y)
I hope this helps!
What r the options so i can get an idea