Posted by Melody on Thursday, October 27, 2011 at 2:23am.
Factor completely:
54+16x^3

Alg. II  Jai, Thursday, October 27, 2011 at 2:31am
54 + 16x^3
2(8x^3 + 27)
then recall the how we factor sum of two cubes:
a^3 + b^3 = (a+b)(a^2  ab + b^2)
therefore,
2(2x+3)(4x^2  6x + 9)
hope this helps~ :)