SOLUTION: Simplify to the form of a+ bi 5 --- 4+7i

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Question 910079: Simplify to the form of a+ bi
5
---
4+7i
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Simplify to the form of a+ bi
5
---
4+7i
=============
Enter it like this:
5/(4+7i)
---
Multiply the NUM and the DEN by the conjugate of the DEN (4-7i)
5%2F%284%2B7i%29+=+5%2A%284-7i%29%2F%28%284%2B7i%29%2A%284-7i%29%29
= %2820-35i%29%2F%2816+%2B+49%29
= %2820-35i%29%2F%2865%29
= 4%2F13+-+%287%2F13%29i