Simplify the expression.
(–2 –2i)(–4 + 6i) (1 point)
8 – 4i
8 – 12i
20 – 4i
–4 – 4i

Simplify the expression.
(5 – 5i) – (–6 – 3i) (1 point)
–1 – 8i
11 – 2i
–11 + 2i
9i

Question

Simplify the expression.
(–2 –2i)(–4 + 6i)  (1 point)
8 – 4i
8 – 12i
20 – 4i
–4 – 4i

Simplify the expression.
(5 – 5i) – (–6 – 3i)  (1 point)
–1 – 8i
11 – 2i
–11 + 2i
9i

anonymous · Answer

Hint: $$i^2 = -1$$

Use Distributive Law

anonymous · Answer

1;20-4i     2;11-2i

anonymous · Answer

you multiply complex numbers with "first outer inner last" method, sort of like if they were polynomials.

Then use Yahoo's hint.

anonymous · Answer

yea thanks guys i finally had figured it out and got them both right

anonymous · Answer

|dw:1352130404807:dw|

anonymous · Answer

@J.A.P.A.N   Glad you worked it out...

@Yahoo!   I agree...  I prefer to call it Distributive also, but so many people seem to only remember the FOIL term, which is just one specific application of Distributive... Anyway, nice sketch :)

anonymous · Answer

Lol...)