Question

How do you multiply `(-3j^7k^5)(-8jk^8)`?

Answer 1

`(-3j^7k^5)(-8jk^8)`

`= (-3*-8)*(j^7*j)*(k^5*k^8)`

`= 24*(j^7*j)*(k^5*k^8)`

In general, `color(blue)(a^m*a^n = a^(m+n)`

`= 24*(j^(7+1))*(k^(5+8))`

`color(green)( = 24*j^8*k^13`