SOLUTION: can someone help me with this problem step by step? 5-6i find the product of the complex number and find its conjugate. thanks Thank you so much!!!!!!

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Question 215861This question is from textbook precalculus
: can someone help me with this problem step by step?
5-6i find the product of the complex number and find its conjugate.
thanks
Thank you so much!!!!!! This question is from textbook precalculus

Found 2 solutions by Alan3354, mime454:
Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website!
5-6i find the product of the complex number and find its conjugate.
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Its conjugate is 5+6i. Only the sign is different between conjugates.
(5-6i)*(5+6i)
= 5*(5+6i) - 6i*(5+6i)
= 25 + 30i - 30i - 36*i*i
= 25 + 36 (i*i = -1)
= 61
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The product of a complex number and its conjugate,
(a + bi) is always a^2 + b^2

Answer by mime454(2) (Show Source):
You can put this solution on YOUR website!
guy above thank you so much!