Will mark brainliest, need this done asap! factor each polynomial completely.

1) Taking 10xy we get

=10xy(x^4-4y^2)

2) Taking ab common

=ab(a^4-64)

3) Taking 2 common

=2(125m^3+27)

4) k^4-10k^2-39

=k^4-13k^2+3k^2-39

=k^2(k^2-13)+3(k^2-13)

=(k^2+3)(k^2-13)

5) 4w^4+10w^2+6w^2+15

=2w^2(2w^2+5)+3(2w^2+5)

=(2w^2+5)(2w^2+3)

6) 2n^3+7n^2-2n-7

=n^2(2n+7)-1(2n+7)

=(n^2-1)(2n+7)

Hope this helps