Answer
$(6g^{3}-7h^{2})(5g^{2}+4h)$
Work Step by Step
$30g^{5}+24g^{3}h-35g^{2}h^{2}-28h^{3}=$
...factor out the GCF from each pair of terms.
$=6g^{3}(5g^{2}+6h)-7h^{2}(5g^{2}+4h)$
...use the Distributive Property.
$=(6g^{3}-7h^{2})(5g^{2}+4h)$