Question

Пожалуйста помогите (((! ​

Answer 1

Ответ:

${x}^{2} + 2x + 5x + 10 = x(x + 2) + 5(x + 2) = (x + 5)(x + 2)$

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

${x}^{2} - 2x + 9x + 18 = x(x - 2) + 9(x + 2) = ( - x + 9)(x + 2)$