
Jacob C. answered 07/29/21
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Adaptive Math and Physics Tutor
Let a = <-4, -2, -3> and b = <-2, 0, -5>. Then,
-2a - 2b = -2<-4, -2, -3> - 2<-2, 0, -5>
-2a - 2b = <8, 4, 6> + <4, 0, 10>
-2a - 2b = <12, 4, 16>