Question

!!!!!!!!!!urgent!!!!!!!!!!!!!!​

Answer 1

Răspuns:

$( - 8 {a}^{2} - 7a + 6) - ( - 2 {a}^{2} + a + 6) = - 8 {a}^{2} - 7a + 6 + 2 {a}^{2} - a - 6 = \\ = - 6 {a}^{2} - 8a$