Question

Преобразуйте в многочлен :(a-3)²:(2y+5)²:(5a-b)

Answer 1

(a+4)^2=a^2+8a+16
(3y-c)^2=c^2-6cy+9y^2
(2a+5)(2a+5)=4a^2-25
(x^2+y)(x^2-y)=x^4-y^2