SOLUTION: What is the domain of f(x)= 2x^4 - 4x^2 + 8

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Question 661159: What is the domain of f(x)= 2x^4 - 4x^2 + 8
Answer by swincher4391(1107) About Me  (Show Source):
You can put this solution on YOUR website!
All reals.
Think of your usual domain restrictions:
1)Taking the square root of a negative number.
2)Dividing by 0.
With any polynomial, neither of these restrictions apply, so the domain is always going to be all reals or (-oo,oo).