Question 941153

I'm not sure how to solve this. It's asking me to factor the expression.

The expression it's asking me to factor is:
54x^2 +81x +30 

and it's also asking me to factor a second expression
-216x^3 + 1

If you could give me some insight on how to factor these two problems you'd be a huge help! Thank you!
<pre>
{{{54x^2 + 81x + 30}}}
{{{3(18x^2 + 27x + 10)}}} ------------- Factoring out GCF, 3
{{{3(18x^2 + 12x + 15x + 10)}}} -------- Replacing 27x with + 12x + 15x 
3[6x(3x + 2) + 5(3x + 2)] ---- Factoring out GCF from {{{system(18x^2 + 12_and,15x + 10)}}}
{{{highlight_green(3(6x + 5)(3x + 2))}}}
Is the second expression: {{{- 216x^3 + 1}}}, or {{{216x^3 + 1}}}? I might be able to help you (time constraints) if you respond.