Respuesta :
Answer:
Step-by-step explanation:
if u is an irrational number added to a rational number (sqrt 15) to yield 2, then that would mean u would = root -1.78.....
which means you wouldn't have a real solution. if you want a complex answer, it would be sqrt(1.78)i
Building an solving an equation, it is found that the number is x = -1.87298334621 ...
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- The number is unknown, so we are going to call it x.
- The number is added to [tex]\sqrt{15}[/tex]
- The result is 2.
Thus:
[tex]x + \sqrt{15} = 2[/tex]
[tex]x = 2 - \sqrt{15}[/tex]
[tex]x = -1.87298334621 ...[/tex]
Which is a non-terminating decimal, thus it is irrational.
A similar problem is given at https://brainly.com/question/13094243
