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= 10/9 - 4/3 (1/2) - 2/3
= 10/9 - 2/3 - 2/3
= 4/9 - 2/3
= -2 / 9
b. 3^2 [ 3^( -2 + 1) ]^3 x 1 / 27 x (1/9)
3^2 [ 3^-1]^3 / 3
3^2 [1/3]^3 / 3
3 [1/3]^3
3 x (1/3^3)
3/3^3
3 ^ (1 - 3)
3 ^ (-2)
1 / 3^2
1/9