Question

помогите пожалуйста срочно надо°

Answer 1

$1) a)- 6 {x}^{3} y + 3 {x}^{2} {y}^{2} - 3 {x}^{2} {y}^{3} \\ 1)b)(6 {x}^{2} y - 4 {y}^{3} x + 6 {x}^{2} {y}^{2} ) \times ( - 3 {x}^{2} ) = - 18 {x}^{4} y + 12 {x}^{3} {y}^{3} - 8 {x}^{4} {y}^{2}$
$2) = 6 {x}^{2} - 10x + 2 - 6 {x}^{2} + 12x - 9 = 2x - 7 \\ x = - 2 \\ 2 \times ( - 2) - 7 = - 4 - 7 = 11$
$3)6 {y}^{2} - 3xy - 2 {y}^{2} x - 2 {y}^{4}$
многочлен 4-й степени