10.
1) (x+4)(x+4)(x+4) = (x+4)(x^2 + 8x + 16) = x^3 + 8x^2 + 16x + 4x^2 + 32x + 64 = x^3 + 12x^2 + 48x + 64.
2) (3c - 2)(3c - 2)(3c - 2) = (3c - 2)(9c^2 - 12c + 4) = 27c^3 - 36c^2 + 12c - 18c^2 + 24c - 8 = 27c^3 + 54c^2 + 36c - 8.
11.
600^3
12.
a(a-10)-11