a) x^2 - 14^2 = (x-14)(x+14)
б) 13^2 - m^2 = (13-m)(13+m)
в) y^2 - 12^2 = (y-12)(y+12)
г) 15^2 -n^2 = (15-n)(15+n)
a) x^2 - 14^2 = (x-14)(x+14)
б) 13^2 - m^2 = (13-m)(13+m)
в) y^2 - 12^2 = (y-12)(y+12)
г) 15^2 -n^2 = (15-n)(15+n)