SOLUTION: (3+ root negative four) (4+ root negative 1) i made the root negative four in the first parenthesis i root 2 and the negative root i in the second parenthesis 4i. im not sure w

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: (3+ root negative four) (4+ root negative 1) i made the root negative four in the first parenthesis i root 2 and the negative root i in the second parenthesis 4i. im not sure w      Log On


   

Question 239713: (3+ root negative four) (4+ root negative 1)
i made the root negative four in the first parenthesis i root 2 and the negative root i in the second parenthesis 4i. im not sure what to do next thanks
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
(3+ root negative four) (4+ root negative 1)
i made the root negative four in the first parenthesis i root 2 and the negative root i in the second parenthesis 4i. im not sure what to do next thanks
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Good start:
(3 + 2i)(4 + i)
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Use FOIL to get:
F: 3*4 = 12
O: 3i
I: 8i
L: -2
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Combine to get: 10+11i
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Cheers,
Stan H.