How do I simplify? 4/(1+i) the answer is supposed to be 2-2i ??

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How do I simplify? 4/(1+i) the answer is supposed to be 2-2i ??

Mathematics
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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conflagerate the bottom....
multiply the top and bottom by the conjugate of (1+i) which is (1-i). Simplify.
\[\frac{4}{1+i} * \frac{1-i}{1-i}\]

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Other answers:

conjugate! thats the word I wanted lol
4-4i/1+i-i-i2 i2=1 so 4-4i/2 simplify to get 2-2i
i2=-1
Awesome, thank you so much for your help!
welcome from the both of us!

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