SOLUTION: i have to find the domain and i have no idea where to start. please help! y=(x^2+8x+12)/∜(x+5)

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Question 769598: i have to find the domain and i have no idea where to start. please help! y=(x^2+8x+12)/∜(x+5)
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
y=(x^2+8x+12)/∜(x+5)

Domain: What values are permitted for x?
The numerator makes no restrictions. Polynomials can accept all real numbers.
The denominator puts a retriction on being fourth-root function, since that can only accept expressions which are greater than or equal to zero.
You MUST have x+5>=0
x%3E=-5

The domain is, the real numbers greater than or equal to negative 5.