Question

\[\frac{10-20i}{3-i}\]

Answer 1

Multiply the conjugate
\[\frac{10-20i}{3-i} \times \frac{3+i}{3+i}\]
simplify

Answer 2

is that 10-20i x 3+i and 3-i x 3+i

Answer 3

yes

Answer 4

what about the signs being different

Answer 5

30 -20i^2

Answer 6

9 + or - i^2

Answer 7

10-20i x 3+i
30+10i-60i-20i^2
30-50i+20
50-50i

Answer 8

i^2=-1

Answer 9

oh i see, i missed multiplying the 20