Question

Simplify:
(-2i) (5i) (-i)

Answer 1

(-2i) (5i) (-i) = 10i^3 now i^3 = -i

do the rest

Answer 2

so you got the 10 by multiplying all numbers... I see, thanks for showing me, so now it would be 10i???

Answer 3

(-2i) (5i) (-i)
(2*5)(-i*i*-i)
10i^3 i^2=-1
10i^2*i
10(-1)*i
-10i

Answer 4

Yeah I see thanks a lot to you both!!!

Answer 5

My Pleasure.