Question

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

Answer 1

it's like distributing to parenthesis :)

\[u=<5,6>\]\[v=<-2,-6>\]
\[\large-2u+5v\]\[(\large-2\color{red}{<5,6>})+~(5\color{blue}{<-2,-6>})\]so you literally just distribute the 2 to the 5 & 6 and the 5 to the -2 & -6:\[\large<-10,-12>+<-10+-12>\]

Answer 2

wait that's wrong..the distribution, fix it

Answer 3

\[<−10,−12>+<−10,−30>\]

Answer 4

so it be -20,-42??

Answer 5

and then you just add:\[<-20,-42>\]

Answer 6

dont forget the brackets! :)

Answer 7

WOOO thank you :) do u mind helping me with another?!

Answer 8

@yummydum