Associative Property
The parentheses are grouping operators.
Think about the word associate to make it easier
So the function we're dealing with is
f(x) =

Factorising we get,

Therefore, the vertical asymptotes are at x = 3 and x = 6
18/20 and 27/30 hope this helps
The easiest way is to try the point (-4,1), that is, x=-4, y=1,
to see which equation works.
b works.
The usual way to do it is to find the equation of the circle
standard form of a circle is (x-h)²+(y-k)²=r², (h,k) are the coordinates of the center, r is the radius.
in this case, the center is (-2,1), so (x+2)²+(y-1)²=r²
the given point (-4,1) is for you to find r: (-4+2)²+(1-1)²=r², r=2
so the equation is (x+2)²+(y-1)²=2²
expand it: x²+4x+4+y²-2y+1=4
x²+y²+4x-2y+1=0, which is answer b.
C.30 because if u multiply the denominators you get 30 not the other numbers