Answer:
[tex]\mathrm{1-5.\: x^3+9x^2+27x+27}[/tex][tex]\mathrm{6-10.\:27a^3-27a^2b+9ab^2-b^3}[/tex]
Step-by-step explanation:
[tex]\mathrm{1.\: \left(x+3\right)^3}\\\\\mathrm{=x^3+3x^2\cdot \:3+3x\cdot \:3^2+3^3}\\\\\mathrm{=x^3+9x^2+27x+27}[/tex]
[tex]\mathrm{2.\: (3a-b)^3}\\\\\mathrm{=\left(3a\right)^3-3\left(3a\right)^2b+3\cdot \:3ab^2-b^3}\\\\\mathrm{=27a^3-27a^2b+9ab^2-b^3}[/tex]