SOLUTION: Factor completely: 27-8u^3 Can you please show me how to work this problem? Thank you!

Algebra.Com
Question 328292: Factor completely:
27-8u^3
Can you please show me how to work this problem? Thank you!

Found 2 solutions by Earlsdon, mananth:
Answer by Earlsdon(6294)   (Show Source): You can put this solution on YOUR website!
Factor:
Rewrite this as:
Notice that this is the sum of two cubes:
The sum of two cubes can be factored thus:
where and so...

Answer by mananth(16946)   (Show Source): You can put this solution on YOUR website!
27-8u^3
(3)^3-(2u)^3
This is difference of cubes.
the general formula is
a=3 & b= 2u
So our solution will be

RELATED QUESTIONS

Please can someone walk me through factoring this polynomial? Factor completely... (answered by funmath)
Please help me!!! square factor 3 (2-3 Square factor 2) Please show me how to work... (answered by jim_thompson5910)
Hi, can you please help me? I need to factor the following completely:... (answered by jsmallt9)
Show that x-1 either is or is not a factor of P(x) = 2x^4 +3x^3 - 12x^2 -7x +6. Could... (answered by Alan3354)
Please help me to solve this equation: Factor completely 8u^4-50u^3-42u^2 (answered by Alan3354,ewatrrr)
Please help me to solve this equation: Factor completely 8u^4-50u^3-42u^2 (answered by Alan3354)
Can you show me how to factor completely this problem 125c^6... (answered by Alan3354)
please show me how you got the answer. Factor this expression completely. y3 - 27 (answered by stanbon)
Can you please show me how to simplify this radical problem? {{{ 3/sqrt(3) - 2/sqrt(27)... (answered by Alan3354)