а) -а^4+16=(4-а)(4+а);
б)64x^2-(x-1)^2=(8х-х+1)(8х+х-1)=(7х+1)(9х-1);
в)(3х-3)^2-(x+2)^2=(3х-3-х-2)(3х-3+х+2)=(2х-5)(4х-1)
а) -а^4+16=(4-а)(4+а);
б)64x^2-(x-1)^2=(8х-х+1)(8х+х-1)=(7х+1)(9х-1);
в)(3х-3)^2-(x+2)^2=(3х-3-х-2)(3х-3+х+2)=(2х-5)(4х-1)