Simplify: frac2x+6x2+3x\\frac{2x+6}{x^2+3x}frac2x+6x2+3x (assume x≠0,−3x \neq 0, -3x=0,−3).
frac2x\\frac{2}{x}frac2x
frac2x+3\\frac{2}{x+3}frac2x+3
fracx+3x\\frac{x+3}{x}fracx+3x
frac2xx+3\\frac{2x}{x+3}frac2xx+3