find each product
[tex](x + 4 ) {}^{3} [/tex]
[tex](x - 8) {}^{3} [/tex]
[tex](5a - 7) {}^{3} [/tex]
[tex](2x + 5) {}^{3} [/tex]
[tex](x - 2y) {}^{3} [/tex]
​