Expand : 2x(4x - y) ( 4x + y ) = [tex] 32x^{3} [/tex] - [tex] 2xy^{2} [/tex] .
This is how I got my answer,
Expand :
( 4x - y ) ( 4x + y ) : [tex] 16x^{2} [/tex] - [tex] y^{2} [/tex]
= 2x([tex]16 x^{2} [/tex] - [tex] y^{2} [/tex])
Expand : [tex] 32x^{3} [/tex] - [tex] 2xy^{2} [/tex] .
Hope this helps :)