factor please help
1.a^3-125=
2.2x^2+X-4=
3.3X^2+X-4=
4.X^4negative2X^2-3=

Question

factor please help
1.a^3-125=
2.2x^2+X-4=
3.3X^2+X-4=
4.X^4negative2X^2-3=

mathmale · Answer

I attempted to help you with this very same post several hours ago, but you never responded.  Why close that post and start a new one now?

mathmale · Answer

a^3-125 = a^3 - 5^3, which is a difference of two cubes.
What's the formula for factoring the difference of two cubes?

anonymous · Answer

I do not no the formula @ mathmale

mathmale · Answer

the formula for factoring the difference of two squares is x^2 - a^2 = (x-a)(x+a).
Find the equivalent formula for factoring the difference of two cubes, please.

jdoe0001 · Answer

mathmale  easy answer on that
many do that, since they're just "waiting" to get a dry answer they can transcribe over
=)

mathmale · Answer

Please do a Google search right now for "factoring the difference of two cubes."

anonymous · Answer

I'm doing the google search

mathmale · Answer

Great.  Then you'll be able to finish this formula:   a^3 - b^3 = (    -    )(    +        -       )

anonymous · Answer

(A+B)(A^2-AB+B^2)