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OpenStudy (anonymous):
Where did I go wrong in this problem? 4. Simplify the expression. (–2 – 2i)(–4 + 6i) (1 point) (a) 8 – 4i (b) 8 – 12i (c) 20 – 4i (d) –4 – 4i
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OpenStudy (anonymous):
I got number c. What did you answer?
OpenStudy (anonymous):
I attempted FOIL. I turned it into 8-12i+8i-12i^2 8-20i+12 20-20i
OpenStudy (anonymous):
So I haven't answered it yet. could you tell me how you got there please?
OpenStudy (asnaseer):
Your second step has a mistake: 8-12i+8i-12i^2 8-20i+12 <--- -12i + 8i = -4i, NOT -20i
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