Tính biết

c) 967 – [8 + 2.3^2 – 24 : 6 + (9 – 7)^3].5
d) A = 1 + 2 + 2^2+ 2^3+ 2^4 + 2^5+ 2^6 + 2^7+ 2^8 + 2^9+ 2^10