Answer:
[tex]b(3a-7c)[/tex]
Step-by-step explanation:
the difference of 3ab and 7bc
To find the difference we subtract the terms
the difference of 3ab and 7bc is 3ab - 7bc
3ab can be written as 3*a*b
7bc can be written as 8*b*c
Common factor is 'b'
GCF is 'b'
WE put GCF outside and write the remaining terms inside the parenthesis
[tex]b(3a-7c)[/tex]
