8a³ + 12a²b + 6ab² + b³ при а=3,5;b=-58a³ + 12a²b + 6ab² + b³ = (2a + b)³ = (2 * 3.5 - 5)³ = (7 - 5)³ =2³ = 827c³ - 54c²b + 36cd² - 8d³ при c=1¹₃;d=0,527c³ - 54c²b + 36cd² - 8d³ =(3c - 2d)³ =(3 * 1

- 2 * 0.5)³ = (4 - 1)³ =3³ = 27(a + 3d)(a² - 3ab + 9b²) при a=2;b=₋²₃(a + 3d)(a² - 3ab + 9b²) =(a + 3d)³ = (2 + 3 * (-

))³ =(2 - 2)³ =0³ = 0(4c - 3d)(16c² + 12cd + 9d²) при c=-0,25;d=2,15(4c - 3d)(16c² + 12cd + 9d²) =(4c - 3d)³ =(4 * (-0.25) - 3 * 2.15)³ =(-1 - 6,45)³ =-7.45³ = -413,493625