Answer:
13. 10(5k+2)
14. 5(5b-5)
Explanation:
Part 1
[tex]50k+20[/tex]The common factor of 50k and 20 is 10. Therefore, the factored expression is:
[tex]\begin{gathered} 50k+20=10\mleft(\frac{50k}{10}+\frac{20}{10}\mright) \\ =10(5k+2) \end{gathered}[/tex]Part 2
[tex]40b-25[/tex]The common factor of 40b and 25 is 5. Therefore, the factored expression is:
[tex]\begin{gathered} 40b-25=5\mleft(\frac{40b}{5}-\frac{25}{5}\mright) \\ =5(8b-5) \end{gathered}[/tex]