Ответ: 2.
Объяснение:
(3х+1)(9х²-3х+1) якщо х=⅓.
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(3х+1)(9х²-3х+1) =(3x)^3 + 1^3 = 27x^3+1 => при x=1/3 =>
27*(1/3)^3 +1 = 27*1/27 + 1 = 1 + 1 = 2.
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Ответ: 2.
Объяснение:
(3х+1)(9х²-3х+1) якщо х=⅓.
************
(3х+1)(9х²-3х+1) =(3x)^3 + 1^3 = 27x^3+1 => при x=1/3 =>
27*(1/3)^3 +1 = 27*1/27 + 1 = 1 + 1 = 2.