Question

4a(a-2)-(a-4)^2 разложить

Answer 1

4a^2-8a-a^2+8a-16
3a^2-16

Answer 2

4а(а-2)-(а-4)^2=4а^2-8а-(а^2-8а+16)=4а^2-8а-а^2+8а-16=3а^2-16