6a^3-6b^3 ---------------- = 3a^2 -3b^2 при a=6.5 b=2.5

Question

6a^3-6b^3
---------------- =
3a^2 -3b^2
при
a=6.5
b=2.5

Answer 1

Ответ на фотографии..

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Answer 2

6(a-b)(a²+ab+b²)/3(a-b)(a+b)=2(a²+ab+b²)/(a+b)=
=2(42,25+16,25+6,25)/(6,5+2,5)=2*64,75/9=129,5/9=14 35/90=14 7/18