Question

HHHHHHHHHHHHHHHHEEEEEEEEEEEEEEEEEEEEELLLLLLLLLLLLLLPPPPPPPPPPPP
Me

Answer 1

ab-ac=a(b+c)
a is a common factor
factor them to find comon factor
15n=3*5*n
18=2*3*3
common factor is 3

15n-18=3(5n)-3(6)=3(5n-6)

first blank is 3
2nd blank is 5n-6