SOLUTION: Let A=i+3j-2k and B=4i-2j+4k , find (2A+B)(A-2B)

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Question 997508: Let A=i+3j-2k

and
B=4i-2j+4k
, find
(2A+B)(A-2B)
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Let A=i+3j-2k

and
B=4i-2j+4k
, find
(2A+B)(A-2B)
--------------
2A + B = (2i+6j-4k) + 4i-2j+4k = 6i+4j
=============================
A - 2B = i+3j-2k - (8i-4j+8k) = -7i+7j-10k
---------------------------
Do you mean the cross product? Or the dot product?