Question 494627

{{{(2+h)^3}}}


={{{(2+h)(2+h)^2}}}


={{{(2+h)(4+4h+h^2)}}}


={{{8+8h+2h^2+4h+4h^2+h^3}}}


={{{8+12h+6h^2+h^3}}}...rearrange terms


={{{h^3+6h^2+12h+8}}}