Tính nhanh: a) (x^2 - 100) : (x + 10); b) (27x^3 + 1) : (9x^2 - 3x + 1); c) (x^2 + 6x + 9) : (3 + x); d) (x^2 + 16 - 8x) : (4 - x)

Tính nhanh
a) (x^2 - 100) : (x + 10)
b) (27x^3 + 1) : (9x^2 - 3x + 1)
c) (x^2 + 6x + 9) : (3 + x)
d) (x^2 + 16 - 8x) : (4 - x)
e) (x^6 + 2x^3y^2 + y^4) : (x^3 + y^2)
g) (625x^4 - 1) : ( (5x + 1)(5x - 1))