Arrange the terms 6x^4 y^2-4x^2 y +2xy^2+8 so that the powers of y are in ascending order
6x4y2 - 4x2y + 2xy2 + 8
Ascending means from least to greatest.
8 - 4x2y + 2xy2 + 6x4y2
The last two terms have the same power of y, so I guess it doesn't matter which comes first.
Also the normal way to arrange an expression is to put the powers in descending order, which just means from greatest to least.