Answer:
(5n + 3 )(n+4 )
Step-by-step explanation:
5n^2+19n+12
(5n + x )(n+y )
5* x + y = 19
xy =12
choices for x and y are 1 ,12 12,1
2.6 6,2
3.4 4,3
Guess and check
x < 4 because we are multiplying by 5
check 3,4
5*3 +4 = 19
