Question

x^2(3-5y^2)+x(xy^2-3x)-2y(y-2x^2y)

Answer 1

hey friend,

x^2(3-5y^2)+x(xy^2-3x)-2y(y-2x^2y)
3x^2-5y^2x^2+x^2y^2-3x^2-2y^2+2y^2+
4x^2y^2
= -4y^2x^2+4x^2y^2
=0 ,ans
have a nice day