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May 2, 2016
Posted by **tuhituhi** on Wednesday, January 23, 2013 at 11:25am.

-> 3a^2 +6a^2 x^2 - 3a^3 x ????

- maths -
**Steve**, Wednesday, January 23, 2013 at 12:12pmFactor out 3a^2:

3a^2(1+2x^2-ax)

That's about as far as we can go.

Now, if you had started out with

3a^4 - 6a^3x + 3a^2x^2,

you'd have 3a^2(x-a)^2