Let ${\bf a}_1 = \left[{\begin{matrix}8 \cr -5 \cr -5 \cr\end{matrix}}\right]$, ${\bf a}_2 = \left[{\begin{matrix}-7 \cr -6 \cr 5 \cr\end{matrix}}\right]$, and ${\bf b} = \left[{\begin{matrix}53 \cr -2 \cr -35 \cr\end{matrix}}\right]$.

Is ${\bf b}$ in the span of of ${\bf a}_1$ and ${\bf a}_2$?
A. Yes, ${\bf b}$ is in the span.
B. No, ${\bf b}$ is not in the span.
C. We cannot tell if ${\bf b}$ is in the span.

Either fill in the coefficients of the vector equation, or enter "NONE" if no solution is possible.

${\bf b}=$ ${\bf a}_1+$ ${\bf a}_2$