Practice problem
Simplify the following expression: x−3x2−6x+9\frac{x-3}{x^{2}-6x+9}x2−6x+9x−3
x+3x+3x+3
x−3x-3x−3
1x+3\frac{1}{x+3}x+31
1x−3\frac{1}{x-3}x−31
Type a concept, like “slope” or “photosynthesis”.