-3(a^2+2ab+b^2)=-3(a+b)^2
Вроде так
(a+b)^2-(a-b)(a+b)=
a²+2ab+b²-(a²-b²)=
a²+2ab+b²-a²+b²=
2ab+2b²=2ab(1+b)
44log2(√4/2)=44log2(√2)=44log2 (2^1/2)=44*1/2log2(2)=22*1=22
= <u></u>= <u>3х³у² *(-2ху^4)²</u> = <u> 3х³у² * 4х²у^8</u> = 3х^5y^10
4 4
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