Simplified evaluation: (1) . 1 / 2x + (- 3 / 2x + 1 / 3Y ^ 2) - (2x-2 / 3Y ^ 2), where x = - 1 / 3, y = 2 / 3 (2) . [(XY + 2) (XY-2) - 2x ^ 2Y ^ 2 + 4] / (XY), where x = 10, y = - 1 / 25 (3) . x (x + 2Y) - (x + 1) ^ 2 + 2x, where x = 1 / 25, y = - 25

Simplified evaluation: (1) . 1 / 2x + (- 3 / 2x + 1 / 3Y ^ 2) - (2x-2 / 3Y ^ 2), where x = - 1 / 3, y = 2 / 3 (2) . [(XY + 2) (XY-2) - 2x ^ 2Y ^ 2 + 4] / (XY), where x = 10, y = - 1 / 25 (3) . x (x + 2Y) - (x + 1) ^ 2 + 2x, where x = 1 / 25, y = - 25

(1) . 1 / 2x + (- 3 / 2x + 1 / 3Y ^ 2) - (2x-2 / 3Y ^ 2), where x = - 1 / 3, y = 2 / 3
=1/2x-3/2x+1/3y^2-2x+2/3y^2
=-3x+y^2
=-3*(-1/3)+(2/3)^2
=1+4/9
=13/9
(2) . [(XY + 2) (XY-2) - 2x ^ 2Y ^ 2 + 4] / (XY), where x = 10, y = - 1 / 25
=(x^2y^2-4-2x^2y^2+4)÷(xy)
=-x^2y^2÷(xy)
=-xy
=-10*(-1/25)
=2/5
(3) . x (x + 2Y) - (x + 1) ^ 2 + 2x, where x = 1 / 25, y = - 25
=x^2+2xy-x^2-2x-1+2x
=2xy-1
=2*(1/25)*(-25)-1
=-2-1
=-3