Question

Выполни действия
(y^2-2a)(2a+y^2)

(3x^2+x)^2

(2+m)^2-(2-m)^2

Answer 1

(y²-2a)(2a+y²)=(y²-2a)(y²+2a)=y⁴-4a²

(3x²+x)²=9x⁴+6x³+x²

(2+m)²(2-m)²=((2+m)(2-m))²=(4-m²)²=16-8m²+m⁴