X+6+X+6+X+6=3x+18
=3(X+6)
step-by-step explanation:
x^2 -12x + 36 + y^2 = 36
x^2 + y^2 = 12x
r^2 = 12rcos(theta)
r = 12 cos(theta)
de-gf
hj=3x+20
ji=15x-64