a: \(=16x^2\left(x-y\right)+10y\left(x-y\right)\)
\(=2\left(x-y\right)\left(8x^2+5y\right)\)
e: =(x-3)(x+3)
f: =(2x-5)(2x+5)
h: \(=\left(x-y\right)\left(x+y\right)\left(x^2-xy+y^2\right)\left(x^2+xy+y^2\right)\)
m: \(=\left(x^2-y\right)\left(x^2+y\right)\)




