How do I factor #x^3-2x^2-4x+8# completely?
2 Answers
Jul 26, 2015
Factor
Ans:
Explanation:
Factor by grouping:
Jul 26, 2015
Factor by grouping first, then use the formula for the difference of two squares.
Explanation:
Your expression looks like this
You can factor this expression by grouping the first and third terms
This is equivalent to
The first binomial is actually the difference of two perfect squares, which means that you can write it as
Your expression will thus be