Question

Пожалуйста очень срочно​

Answer 1

Ответ:

$\frac{17 {}^{3} + 16 {}^{3} }{33} - 17 \times 16 = \frac{9009}{33} - 272 = 273 - 272 = 1$

$3b {}^{3} - 24 = 3(b - 2)(b {}^{2} + 2b + 4) \\ a {}^{2} - 8ay + 16y {}^{2} + 3a - 12y = (a - 4y)(3 + a - 4y)$

$(2y - 5) {}^{2} + (3y - 5)(3y + 5) + 40y = 13y {}^{2} + 20y$

$13y {}^{2} + 20y = 13 \times ( - 2) {}^{2} + 20 \times ( - 2) = - 2( - 13 \times 2 + 20) = - 2( - 26 + 20) = - 2 \times ( - 6) = 12$