(x+3)^3+11=8x+x^2 (x+9)

(x+3)^3+11=8x+x^2(x+9)
x^3+9x^2+27x+27+11-8x-x^2(x+9)=0
x^3+9x^2+19x+38-x^3-9x^2=0
19x+38=0
x=-38/19
x=-2