Question

СОС!!!!!!!!!!!!!!!!!!!!!
=10БАЛЛОВ​

Answer 1

Ответ:

$2a {}^{3} - 54 = 2(a {}^{3} - 27) = 2(a - 3)(a {}^{2} + 3a + 9)$

$a {}^{2} - 2ax + x {}^{2} + 4a - 4x = (a - x) {}^{2} + 4(a - x)$