Math x^2 + 4x - 77 = 0 Factor and check Asked by AnneS2 on 03 Nov 07:14 Last updated by anonymous on 04 Nov 12:19

x^2 + 4x - 77 = 0 (x )(x ) ( -7)( +11)=0 (x-7) (x+11) = 0 Check: (x-7) (x+11) = 0 (x)(x) (x)(11) (-7)(x) (-7)(11)=0 x^2 +11x -7x -77=0 x^2 +4x -77=0