Question

m^2+11mn+18n^2 factorise the following

Answer 1

=m^2+9mn+2mn+18n^2
=m (m+9n)+2n (m+9n)
=(m+9n)(m+2n)

Answer 2

Answer:

${m}^{2} + 11mn + 18 {n}^{2} \\ {m}^{2} + 9mn + 2mn + 18 {n}^{2} \\ m(m + 9n) + 2n(m + 9n) \\ \underline{ \underline{ (m + 9n)(m + 2n)}}$