Answer:
5[tex]\sqrt{3}[/tex] [tex]b^{5}[/tex]
Step-by-step explanation:
[tex]\sqrt{25}[/tex]×3 [tex]b^{10}[/tex]
[tex]\sqrt{5^2}[/tex]×3 [tex]b^{10}[/tex]
[tex]\sqrt{5^2} \sqrt{b^2} \sqrt{3}[/tex]
5[tex]b^{5} \sqrt{3}[/tex]
5[tex]\sqrt{3}[/tex] [tex]b^{5}[/tex]
