.I NEED HELP FOR THIS ONE

1. m³+12m²+48m+64
2. 125b³-450b²c+540bc²-216c³
3. 8x³+27
4. n³-343
5. 27a³-30a²b+40ab²-64b³
Answer:
1. m³ + 12m² + 48m + 64
2. 125b³ - 450b²c + 540bc² - 216c³
3. 8x³ + 27
4.?
5.?