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What is the domain of #7x^3 + 5x^2# ?

I understand that the domain is like the way the line is continuing through 'x' or something similar like that but I'm not sure what the domain of this would be. Would it be all real numbers?

Answer 1

Avery Alexander

Yes all are real numbers except from #0#

The domain of #7x^3 + 5x^2#

domain #x# = integers except from zero

Reason #7x^3 + 5x^2#, when #x = 0#

#7(0)^3 + 5(0)^2#

#7(0) + 5(0)#

#0 + 0# #-># null

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Answer 2

Nathan Axel

The Domain is all real numbers

It's a straightforward question: domain denotes the value of x that, in the case of a real solution to the equation, could take. According to intuition, the domain of this function is the set of all real numbers R.

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Answer 3

Hazel Anglin

The domain of the function 7x^3 + 5x^2 is all real numbers.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.