ANSWER
5(3y + 5)
EXPLANATION
Both terms of this expression have constants: 15 and 25. Let's write the multiples of each,
[tex]\begin{gathered} 15\colon3\times5 \\ 25\colon5\times5 \end{gathered}[/tex]
The greatest common factor between these two is 5. To take it out as a common factor, we have to divide the two constants from the expression by 5,
[tex]15y+25=5(3y+5)[/tex]
