a.
$\phantom{X}(2\,+\,3m)^{\large 2}\phantom{X}$
b.
$\phantom{X}(a\,-\,3)^{\large 2}\phantom{X}$
c.
$\phantom{X}(\sqrt{5}\,+\,\sqrt{3})^{\large 2}\phantom{X}$
d.
$\phantom{X}(a\,+\,3b)^{\large 3}\phantom{X}$
e.
$\phantom{X}(2a\,-\,b)^{\large 3}\phantom{X}$
