y3+1 = (y+1)(y2-y+1)z3-27 = (z-3)(z2+3z+9)64x3+1/8 = (4x+1/2)(16x2-8x+1)0,008b6-125c3 = (2b2-5c)(4b4+10bc+25c2)x3-10x2+25x = x(x-5)(x-5)36y3-60y2+72y = 12y(3y-5)(3y+6)a2-b2+a-b = (a-b)(a+b+1)x2-10x+25-4y2 = (x-5)2-(2y)2 = (x-5-2y)(x-5+2y)