2(x5-y)
8
It is: y2
4x2-y2 = (2x-y)(2x+y)
factor 4y - 32
25x2 - 10xy + y2 = (5x - y)2
y4 - 256 = (y2 - 16)(y2 + 16) = (y - 4)(y + 4)(y2 + 16)
y(y + 4)
y2
x2 + y2 =x2 + y2 = 5x2 + y2 = 10x2 + y2 = 25
(x - y)(x + y)(x2 - xy + y2)(x2 + xy + y2)
4 - y2 can be written as 22 - y2. This has become of the form of x2 - y2.Expansion for x2 - y2 is (x+y)(x-y).So, 4 - y2 = 22 - y2 = (2+y)(2-y)
(3x + y)(3x - y)