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zavuch27 [327]
3 years ago
13

Is the square root of negative 5 a rational irrational or imaginary

Mathematics
2 answers:
Travka [436]3 years ago
6 0
I believe it is an imaginary number because imaginary numbers are square roots of negative numbers.
mariarad [96]3 years ago
4 0
I think its imaginary
hope this helps
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7nadin3 [17]
To do this problem, you need to use a process called completing the square. Let me explain:  

To complete the square on the function f(x) = x² + 8x +13, first group the first two terms in (  )  and leave some space at the end as follows:
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Now this is a nice form to have because you can get the vertex straight from this form.. IN FACT this is called vertex form or (h,k) form for short.  In general the form is f(x) = a(x - h)² + k  don't worry about the 'a'  for now.. you might see that in our case it is just 1 and will not effect our equation.  You only have to consider this if the original leading coefficient of the quadratic is not 1 to begin with...

So you can see that our vertex is (-4,-3)  
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