Question

How do I factor 27a^3-3a

Answer 1

3a(9a^2-1)

Answer 2

take out the variable, then see if the constants are able to be taken out

Answer 3

3a(9a^2-1)=3a(3a-1)(3a+1)
difference of squares at the end

Answer 4

You pull out like terms to the front:
3a(9x^2 - 1)
Then you notice the second part is of the form a^2 - b^2 = (a - b) (a + b) so:
3a (3x - 1)(3x + 1)

Answer 5

You pull out like terms to the front:
3a(9a^2 - 1)
Then you notice the second part is of the form a^2 - b^2 = (a - b) (a + b) so:
3a (3a - 1)(3a + 1)
Lance put an x in there by accident, so here is the right answer without the confusion.

Answer 6

thank you I remember now