Question

factoring

i already factored but do not know what to do next i got 3x(n^4-7x^2) please help!

Answer 1

what is the original problem?

Answer 2

3xn^4 - 27x^3

Answer 3

\[3n^4-27n^3\]
is this your problem?

Answer 4

no 3xn to the 4

Answer 5

the inside is a difference of squares
however it should be 3x(n^4 -9x^2) .....9*3 = 27

Answer 6

\[3xn^4-27n^3\]
this is it?

Answer 7

I think I will let dumbcow solve this one.....

Answer 8

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

--> n^4-9x^2 = (n^2 +3x)(n^2 -3x)