а) 6er-2tr-3e+t = (2r-1)(3e-t)
б)9s*2-6sd+d*2-f*2 = (3s-d+f)(3s-d-f)
в)p*3-p*2-p+1 = (p+1)(p-1)*2
г)c*2-c-12 = (c+3)(c-4)
д)(q+z)*2-(q-z)*2 = 4qz
е)a*4+a*3+a+1 = (a*2 - a +1)(a+1)*2
а) 6er-2tr-3e+t = (2r-1)(3e-t)
б)9s*2-6sd+d*2-f*2 = (3s-d+f)(3s-d-f)
в)p*3-p*2-p+1 = (p+1)(p-1)*2
г)c*2-c-12 = (c+3)(c-4)
д)(q+z)*2-(q-z)*2 = 4qz
е)a*4+a*3+a+1 = (a*2 - a +1)(a+1)*2