8x(2x-4)-(2-4x)^2=16x^2-32x-(4-16x+16x^2)=16x^2-32x-4+16x-16x^2=-16x-4
-16*1/4-4=16*1/4-4=-4-4=-8
ответ: -8
8x(2x-4)-(2-4x)^2=16x^2-32x-(4-16x+16x^2)=16x^2-32x-4+16x-16x^2=-16x-4
-16*1/4-4=16*1/4-4=-4-4=-8
ответ: -8