Верно ли равенство (x-0.5y)^2-x^2=(0.5y-1)(0.5y+1)+1-xy

Question

Верно ли равенство (x-0.5y)^2-x^2=(0.5y-1)(0.5y+1)+1-xy

Answer 1

(x-0.5y)^2-x^2=(0.5y-1)(0.5y+1)+1-xy ответ равен

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Comments

Спасибо