36x2 + 60x + 25 = 0 (6x )(6x ) ( +5)( +5) (6x+5)(6x+5)=0 Check: (6x+5)(6x+5) (6x)(6x) (6x)(5) (5)(6x) (5)(5) 36x2 +30x +30x +25 36x2 +60x +25