Question

Factorise the following

$m2 + mn + 4m + 4n$
​

Answer 1

Step-by-step explanation:

m2−mn+4m−4n

=m(m−n)+4(m−n)

=(m+4)(m−n)

The factors are (m+4),(m−n)

Answer 2

Step-by-step explanation:

m² - mn + 4 m - 4n

m ( m - n ) + 4 ( m - n )

( m - n ) ( m + 4 ).