SOLUTION: I HAVE A FINAL EXAM COMING UP AND I STILL DON'T UNDERSTAND COMPLEX NUMBERS. THE DIRECTIONS ARE: PUT EACH NUMBER IN THE STANDARD COMPLEX FORM OF A+Bi. THE PROBLEMS ARE: 1. 4-5 sq

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson  -> Lesson -> SOLUTION: I HAVE A FINAL EXAM COMING UP AND I STILL DON'T UNDERSTAND COMPLEX NUMBERS. THE DIRECTIONS ARE: PUT EACH NUMBER IN THE STANDARD COMPLEX FORM OF A+Bi. THE PROBLEMS ARE: 1. 4-5 sq      Log On


   

Question 207197: I HAVE A FINAL EXAM COMING UP AND I STILL DON'T UNDERSTAND COMPLEX NUMBERS. THE DIRECTIONS ARE: PUT EACH NUMBER IN THE STANDARD COMPLEX FORM OF A+Bi.
THE PROBLEMS ARE:
1. 4-5 square root of -6
2. 3+ the square root of -7
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
1. 4-5 square root of -6
4+-+5sqrt%28-6%29
= 4+-+5sqrt%28-1%29%2Asqrt%286%29
= 4+-+5isqrt%286%29
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That's all can be done. i is the sqrt (-1), so separate if from the 6.
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2. 3+ the square root of -7
3+%2B+sqrt%28-7%29
= 3+%2B+sqrt%28-1%29%2Asqrt%287%29
= 3+%2B+isqrt%287%29
No reason to panic.