August 2022 1 10 Report
4b^2c^2-(b^2+c^2-a^2)^2=16p*(p-a)*(p-b)*(p-c)
4*(cd+ab)^2-(a^2+b^2-c^2-d^2)=16*(p-a)*(p-b)*(p-c)*(p-d) Даю 70 баллов!
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