Which expression is equivalent to 6x+12x2+4x+4\frac{6x + 12}{x^2 + 4x + 4}x2+4x+46x+12?
6x+2\frac{6}{x+2}x+26
666
6(x+2)(x+2)2\frac{6(x+2)}{(x+2)^2}(x+2)26(x+2)
x+26\frac{x+2}{6}6x+2