minimize 2 (x^(2)+ (2x^(2) (8-9x))/(7x^(3)+16x^(2)-8x+8))+ (1-2x)^(2)+2(1-2x)^(2) (8-9 (1-2x))/(7(1-2x)^(3)+16(1-2x)^(2)-8 (1-2x)+8), x from 0 to 1/2