bonjour
A = (2/3)^2 + 2^(-2)
A = 2^2/3^2 + 1/2^2
A = 4/9 + 1/4
A = (4 x 4)/(9 x 4) + (1 x 9)/(4 x 9)
A = 16/36 + 9/36
A = 25/36
B = (-3)^(-3) x 1/2
B = -1/3^3 x 1/2
B = -1/27 x 1/2
B = -1/54
C = -(2/8)^2 + 32^(-1)
C = -2^2/8^2 + 1/32
C = -2^2/(2^3)^2 + 1/32
C = -2^2/(2^(3*2)) + 1/(2^5)
C = -2^(2-6) + 1/2^5
C = -2^(-4) + 1/2^5
C = -1/2^4 + 1/2^5
C = -2/2^5 + 1/2^5
C = -1/2^5
C = -1/32
D = 6^(-2) : (1/3)^(-1)
D = 1/6^2 : 3
D = 1/36 x 1/3
D = 1/(36 x 3)
D = 1/108
