Question

Выполните действие
a) (x^2+1)(x-1)(x+1)
б) (3a^2-6b^2)(3a^2+6b^2)

Answer 1

$a)( {x }^{2} + 1)((x - 1)(x + 1) = \\ ( {x}^{2} + 1)( {x }^{2} - 1) = {x}^{4} - 1 \\ b)9 {a}^{4} - 36 {b}^{4}$