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MATH SOLVE
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Simplify −6(3i)(−2i) and 2(3 − i)(−2 + 4i) show work please
4 months ago
Q:
simplify −6(3i)(−2i) and 2(3 − i)(−2 + 4i) show work please
Accepted Solution
A:
i^2 = -1
-6(3i) = -18i
-18i(-2i) = 36(i^2)
36(i^2) = 36(-1)
36(-1) = -36
i^2 = -1
2(3 - i)(-2 + 4i) :(do foil)
2(-6 + 12i +2i - 4i^2)
-2 (-6 + 14i +4)
-2(-2 + 14i)
4 -28i
4-28i is your answer
hope this helps