# math

posted by
**marco** on
.

Not sure of this one. Factor completley

1-81z^2

and this on

16p^2q^2-8pq^2+q^2

posted by
**marco** on
.

Not sure of this one. Factor completley

1-81z^2

and this on

16p^2q^2-8pq^2+q^2