p(x ; y) = 3x² - 7xy + 4y²
p(2 ; 1) ⇒ x = 2 y = 1
p(2 ; 1) = 3 * 2² - 7 * 2 * 1 + 4 * 1² = 3 * 4 - 14 + 4 = 12 - 14 + 4 = 2
Ответ : 2
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Verified answer
p(x ; y) = 3x² - 7xy + 4y²
p(2 ; 1) ⇒ x = 2 y = 1
p(2 ; 1) = 3 * 2² - 7 * 2 * 1 + 4 * 1² = 3 * 4 - 14 + 4 = 12 - 14 + 4 = 2
Ответ : 2