Помогите решить-4,6,8

Question

Помогите решить-4,6,8

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Answer 1

Вот ответ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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Answer 2

4) 23^2-13^2/4*3^2 = 23*23-13*13/4*3*3 = 529-169/36 = 360/36 = 10
6) 96^2-54^2/83^2-67^2 = 96*96-54*54/83*83-67*67 = 9216-2916/6889-4489 = 6300/2400 = 63/24 = 21/8 = 2.625
8) = 112*112 - 2*122*56 + 56*56 = 12544 - 12544 + 3136 = 3136