а) 64000x^12 + 1/27= (40x^4)^3 + (1/3)^3 = (40x^4 + 1/3)(1600x^8 - 40x^4 + 1/9)
б) (11-х)^3-(12-x)^3 = (11-x - 12 + x)((11-x)^2 + (11-x)(12-x) + (12-x)^2)= (-1)(121 - 22x + x^2 + 132 - 23x + x^2 + 144 - 24x + x^2)= -x^2 + 11x - 121 - 132 + 23x + 144 - 24x= 10x - 109
а) 64000x^12 + 1/27= (40x^4)^3 + (1/3)^3 = (40x^4 + 1/3)(1600x^8 - 40x^4 + 1/9)
б) (11-х)^3-(12-x)^3 = (11-x - 12 + x)((11-x)^2 + (11-x)(12-x) + (12-x)^2)
= (-1)(121 - 22x + x^2 + 132 - 23x + x^2 + 144 - 24x + x^2)
= -x^2 + 11x - 121 - 132 + 23x + 144 - 24x
= 10x - 109