Автор - anastassiaandrijevsk

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

Ответ

Автор - lakOR555

u²-8uv+16v²-(u²+8uv+16v²)=

=-8uv+16v²-u²-8uv-16v²=

=-16uv

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