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Автор - Killer228811

(2a+2b)² представьте в виде многочлена ​

Ответ

Автор - VitaliyDavidov

4а^2+8аб+4б^2................

Ответ

Автор - сок111213

(2a + 2b) {}^{2}  = (2a) { }^{2}   +  2 times 2a times 2b + (2b) {}^{2}  = 4 {a}^{2}   +  8ab + 4b {}^{2}

По формуле

(a + b) {}^{2}  = a {}^{2}   + 2ab + b {}^{2}

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