Math x^2 - 49 = 0 Asked by AnneS2 12 years ago 4/1/2013 5:09 AM Last updated by anonymous 12 years ago 4/3/2013 12:33 AM
x^2 - 49 = 0 (x )(x ) ( +7)( -7) (x+7)(x-7) Check: (x+7)(x-7) (x)(x) (x)(-7) (+7)(x) (+7)(-7) x^2 -7x +7x -49 x^2 -49
