Posted by **Anonymous** on Monday, December 5, 2011 at 12:15am.

factor x^3-(x+y)^3

- please, need help on factoring -
**Damon**, Monday, December 5, 2011 at 1:09am
in general

a^3-b^3 = (a-b)(a^2 + a b + b^2)

so

(x-x-y)(x^2+x^2+xy +x^2+2xy+y^2)

-y ( 3x^2+3xy+y^2)

- please, need help on factoring -
**drwls**, Monday, December 5, 2011 at 1:13am
If you multiply out (x+y)^3 and subtract it, you get rid of the x^3 terms, and then factor out y.

x^3 -(x^3 + 3x^2y + 3xy^2 +y^3)

= -y(3x^2 + 3xy + y^2)

The term in parentheses does not factor with integer coefficients.

## Answer this Question

## Related Questions

- Algebra: factoring - I need to find the value of x. 9x^3 + 9x = 30x^2 It's ...
- PLEASE HELP/FACTORING POLYNOMIALS - I need to factor = 16s^6-2f^6 My answer is 2...
- Factoring - x2(squared)-4x+4 I would factor this into (X - 2)(X - 2) If you don'...
- Math(factoring) - I need help with factoring trinomials completely. My teacher's...
- factoring help - 2 factor 4x -32x+48 and 2 2 2 factor (x -1)(x -4)(x -9) please...
- math - Can someone please help me with this factoring? Thanks! Factor 3x^2-7xy+...
- factor the trinomial by grouping - 15x^3-9x^2-6x Can someone please show me how ...
- Algebra - This is giving me a lot of trouble. Factoring Differences of Squares ...
- factoring - could anybody help me figure out step by step how to factor this ...
- factoring - Factor x3 + 9x2 + 27x + 27 Factor 8a3 + 60a2b + 150 ab2+ 125b3 I ...

More Related Questions