Question

Let u = <-5, -9>, v = <6, 8>. Find -8u - 2v.

<52, 88>

<-8, 2>

<112, -28>

<28, 56>

Answer 1

\[
-8u-2v=-8<-5,-9>-2<6,8>\\\quad=<40,72>+<-12,-16>\\\quad=<40-12,72-16>\\\quad=<?,?>
\]

Answer 2

or if you hate math, what is 40 - 12?