Question

Математика.

Даю 15 баллов.

Answer 1

${x}^{2} + 6x + 8 = 0 \\ x1 + x2 = - 6 \\ x1 \times x2 = 8 \\ x1 = - 4 \\ x2 = - 2$

${18x}^{4} y - 27x = 9x(2 {x}^{3} y - 3)$

б - 9x