- #1

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## Homework Statement

Expand and simplify:

(2[tex]\vec{a}[/tex] + 3[tex]\vec{b}[/tex])

**.**(5[tex]\vec{a}[/tex] - [tex]\vec{b}[/tex]

## Homework Equations

## The Attempt at a Solution

I tried expanding it, but was a little confused, and would really appreciate any help..would it be (2[tex]\vec{a}[/tex])([tex]\vec{a}[/tex]) = 2 [tex]\vec{a}[/tex]

^{2}?

Thanks..