Question

Упростить (а-3)^2-а(16+а)

Answer 1

Ответ:

а^2-6а+9-16а-а^2= -22а+9

Answer 2

$(а-3)^2-а(a {?}^{2} + 9) \times (16a + a {}^{2} ) = 16a {}^{2} + a {}^{4} - 96a {}^{2} - 6a {}^{3} + 144a + 9a {}^{2} = 10a {}^{3} + a {}^{4} - 87a {}^{2} + 144a = a {}^{4} + 10a {}^{3} - 87a {}^{2} + 144a$