Question

Решите пример (u-4v)^2 - (u+4v)^2
по формуле (a - b)^2 = a^2 - 2ab + b^2

Answer 1

u²-8uv+16v²-(u²+8uv+16v²)=

=u²-8uv+16v²-u²-8uv-16v²=

=-16uv