<|system|>
Factor the following expression: $145b^2 +29b$.</s>.
<|user|>
Can you answer based on context?
<|assistant|>
The greatest common factor of $145b^2$ and $29b$ is $29b$. We factor $29b$ out of both terms to get:\begin{align*}
145b^2 +29b &= 29b \cdot 5b+ 29b \cdot 1\\
&=29b(5b+1).
\end{align*}