Question

(3x^2+x)^2=
(y^2-2a)(2a+y^2)=
(2+m)^2(2-m)^2=
Помогите

Answer 1

Ответ:

y^2-2a)(2a+y^2)=(y^2-2a)(y^2+2a)=y^4-4a^2

(3x^2+x)^2=9x^4+6x^3+x^2

(2+m)^2(2-m)^2=((2+m)(2-m))^2=(4-m^2)^2=16-8m^2+m^4

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

25a^2-(a+3)^2=(5a-a-3)(5a+a+3)=(4a-3)(6a+3)

27m^3+n^3=(3m+n)(9m^2-3mn+n^2)