Factor the terms in each set, then identify the greatest common factor. a) \(6, 15n\) b) \(4m, m^{2}\)

Solve the system Ax = b using the given LU factorization of A

\(A=\begin{bmatrix}4 & -2 \\2 & 3 \end{bmatrix}=\begin{bmatrix}1 & 0 \\\frac{1}{2} & 1 \end{bmatrix}\begin{bmatrix}4 & -2 \\0 & 4 \end{bmatrix}, b=\begin{bmatrix}0 \\8 \end{bmatrix}\)