a) [7x(14-2x7):2] la puterea 2 = (7x0:2) la puterea 2 = 0^2=0 ^=la puterea
b) (10^2 - 8^2) : 6:2+1^2019=(100-64):3+1=12+1=13
c) [17x(25-8x3)x1^2021-15]x2^3-2^2x3=(17-15)x8-64=16-12=4
d) [(9^2-2^4x5):1+5^9:(5^2)^4] x 2^2 = (1+5^9:5^8)x4=6x4=24
Sper ca te-am ajutat