Question

x³-64y3 factorise the following

Answer 1

$x {}^{3} - 64y {}^{3}$

Apply
$a {}^{3} - b {}^{3} = (a - b)(a {}^{2} + b {}^{2} + ab)$

$= (x - 4y)( x{}^{2} + 16y {}^{2} + 16xy )$


Thanks