Question

СРОЧНО!!!
только первые 3

Answer 1

Ответ:

$1)a {x}^{2} + ay - b {x}^{2} - by + c {x}^{2} + cy = {a}^{2} \times (a - b + c) + y \times (a - b + c) = (a - b + c) \times ( {x}^{2} + y)$

$2) {a}^{2} + a + a {b}^{2} + b + 3ab + 3 = ab \times (a + b + 3) + a + b + 3 = (a + b + 3) \times (ab + 1)$

$3) {x}^{3} - {x}^{2} + {x}^{2} y + x - xy + y = x \times ( {x}^{2} - x + 1) + y \times ( {x}^{2} - x + 1) = ( {x}^{2} - x + 1) \times (x + y)$