SOLUTION: b^2-9/b^3-27 i know i have to use the cube root but i stilll dont get how this problem is sloved.. can you please explain this (:

Question 199580: b^2-9/b^3-27
i know i have to use the cube root but i stilll dont get how this problem is sloved.. can you please explain this (:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

Start with the given expression.

Factor to get (use the difference of squares formula)

Factor to get (use the difference of cubes formula)

Highlight the common terms.

Cancel out the common terms.

Simplify.

So simplifies to .

In other words, where

RELATED QUESTIONS
b^2-9/b^3-27 i know i have to use the cube root but i stilll dont get how this problem... (answered by jim_thompson5910)

I am having a problem simplifying using the Rules of Exponents because of the negative... (answered by MathLover1)

how to solve= 1/cube root 4+ cube root 2 +1 i know the ans is cube root 2 -1 but i... (answered by Alan3354,jsmallt9)

Please help me with this problem: How do I put the following in standard form??... (answered by jim_thompson5910)

I need help with this question i know the pythagorean theorem but i get a little confused (answered by nerdybill)

I dont know how to evaluate this problem because of the cube root. Someone please help... (answered by stanbon)

Hello , can you please help me ? The problem I have to simplify is (8/27)^2/3 and the... (answered by stanbon)

I dont get this can you please help me : 5(x-3)+2=3(x+1) i know the answer is 8 but i... (answered by KMST)

Could you explain the steps of how to solve this? I understand negative cube root of the (answered by rapaljer)