2) (9a^2 + 4)(2 - 3a)(3a + 2)= 4) (x - 1)(x^3 - 1) -3x(x - 1)^2=

Question

2) (9a^2 + 4)(2 - 3a)(3a + 2)=
4) (x - 1)(x^3 - 1) -3x(x - 1)^2=

Answer 1

Ответ
(9a^2+4)(4-9a^2)=16-81a^4
(x-1)^2 (x^2+x+1-3x)=(x-1)^2 (x-1)^2

Comments

Спасибо )))))