x2+11x+18 x2 +11x +18 (x )(x ) ( +9)( +2) (x+9)(x+2) Factor: (x+9)(x+2) Check: (x+9)(x+2) (x)(x) (x)(+2) (+9)(x) (+9)(+2) x2 +2x +9x +18 x2 +11x +18