Example 101

$\;\;\;(4p^{3} + 3q^{3})(4p^{3} - 3q^{3})$

$=(A + B)( A - B) \text{ , where } A = 4p^{3} \text{ and } B = 3q^{3} $

$=A^2-B^2$

$=(4p^{3})^2 - (3q^{3})^2 $

$=16p^{6} - 9q^{6} $