10 points! simplify 3(2-9i)-6i(8+i) show work

10 points! simplify 3(2-9i)-6i(8+i) show work
and if you can (7+6i) (2-5i)

3(2-9i) - 6i(8+i)

use the distributive property of multiplication,
= 6 - 27i - 48i - 6i^2

but i^2 = -1
= 6 - 75i + 6
= 12 - 75i ans

(7 + 6i)(2 - 5i)
= 14 - 35i + 12i - 30(i^2)
= 14 - 35i + 12i + 30
= 44 - 23i ans

i^2 = -1.

So distribute the entire thing.

3 * 2 = 6

3 * 9i = 27i

-6i * 8 = -48i

-6i * i = -6 * i^2 = -6 * -1 = 6

12 - 21i