Question

плиз, даю 15 баллов​

Answer 1

а)

${x}^{3} + 2 {x}^{2} + x + 2 = (x + 2)( {x}^{2} + 1)$

б)

$4x - 4y + xy - {y}^{2} = (x - y)(4 + y)$

в)

$3 {x}^{3} + {x}^{2} + 3x + 1 = (3x + 1)( {x}^{2} + 1)$

г)

$2x + 2y - {x}^{2} - xy = (x + y)(2 - x)$