Question

(x-2)^2-2(x-2)(x+2)+(x+2)^2

Answer 1

x²-4-2(x²+2x-2x-4)+x²+4=x²-4-2-2x²+8+x²+4=2x²-2x²+6=6
Ответ: 6

Answer 2

=х^2-4x+4-2x^2-4x+4x+8+x^2+4x+4=16