Question

factor m4 - n4

Answer 1

\[m^4 = (m^2)^2\]

Answer 2

\[(m^2)^2 - (n^2)^2\]

Answer 3

Nw it is in the form a^2 - b^2 so use \[a^2 - b^2 = (a+b) (a-b)\]

Answer 4

\[(m^2)^2 - (n^2)^2 =(m^2+n^2) ( m^2 - n^2)\]