For the following vectors, Find the value of the following expression $\text{\textbf{u}} • \text{\textbf{v}} + \text{\textbf{u}} • \text{\textbf{w}}$ .

$\text{\textbf{u}}=〈-10,6〉$, $\text{\textbf{v}}=〈12,19〉$ and $\text{\textbf{w}}=〈15,4〉$