упростите выражение ; 4x(x-2)-(x-4) ²
4x(x-2)-(x-4)^2= 4x^2-8x -(x^2-8x+16) = 4x^2-8x -x^2+8x-16 = 3x^2-16
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4x(x-2)-(x-4)^2= 4x^2-8x -(x^2-8x+16) = 4x^2-8x -x^2+8x-16 = 3x^2-16