Question

упростите выражение
(a²+4a)²-a²(a-2)-4a²(2a-3)

Answer 1

(a²+4a)²-a²(a-2)-4a²(2a-3)=a^4+8a³+16a²-a³+2a²-8a³+12a²=a^4-a³+30a²

Answer 2

(a²+4a)²-a²(a-2)-4a²(2a-3)=a⁴+8a³+16a²-a³+2a²-8a³+12a²=a⁴-a³+30a²=a²(a²-a+30)