Question

m^4n-81 n^5 factorise it​

Answer 1

Answer:

Let the given equation m4n-81n5 be written as

=m4n-81n5

=n(m4-81n4)

=n/(m2)2-(9n2)2/

=n(m2-9n2)(m2+9n2)

=n(m-3n)(m+3n)(m2+9n3)