tiling bantu kerhakan soal diatas ya??

nomor 10
c - d = 2a + b - (a - 2b) = a + 3b

c - d = a + 3b = [tex] \left[\begin{array}{ccc}-6\\8\end{array}\right] + 3\left[\begin{array}{ccc}-3\\2\end{array}\right] = \left[\begin{array}{ccc}-6-9\\8+6\end{array}\right] = \left[\begin{array}{ccc}-15\\14\end{array}\right] [/tex]

nomor 11
w = 3u + 5v = [tex]3 \left[\begin{array}{ccc}2\\5\\-8\end{array}\right] + 5 \left[\begin{array}{ccc}0\\-3\\4\end{array}\right] = \left[\begin{array}{ccc}6+0\\15-15\\-24+20\end{array}\right] = \left[\begin{array}{ccc}6\\0\\-4\end{array}\right] [/tex]

u - 3v - 2w = [tex] \left[\begin{array}{ccc}2\\5\\-8\end{array}\right] -3 \left[\begin{array}{ccc}0\\-3\\4\end{array}\right] -2 \left[\begin{array}{ccc}6\\0\\-4\end{array}\right] = \left[\begin{array}{ccc}2-0-12\\5+9-0\\-8-12+8\end{array}\right] = \left[\begin{array}{ccc}-10\\14\\-12\end{array}\right] [/tex]