Answer:

Use the binomial theorem & simplify.

1. x³+3x²y+3xy²+y³

2. x³-3x²y+3xy²-y³

3. x+1

4. 8x³y³+12x²y³+6xy³+y³

5. 8x³-24x²+24x-8

Good luck. Always remember to just trust in yourself!