8) 2020 - 4^3 * (7^2 - 3^3) + 2^4:

4^3 = 64; 7^2 = 49; 3^3 = 27; 2^4 = 16. Следовательно, 2020 - 64 * (49 - 27) + 16 = 2020 - 64 * 22 + 16 = 2020 - 1408 + 16 = 628.