Practice problem
Simplify x2+6x+9x+3\frac{x^2+6x+9}{x+3}x+3x2+6x+9 if x+3≠0x+3\neq0x+3=0.
x+3x+3x+3
1x+3\frac{1}{x+3}x+31
x2+3x^2+3x2+3
x−3x-3x−3
Type a concept, like “slope” or “photosynthesis”.