what is the degree for this polynomial:

Question

anonymous · Answer

$$x^3-5x+4\sqrt{x}$$

anonymous · Answer

3

anonymous · Answer

how is it 3?

anonymous · Answer

when looking for a degree of a polynomial you look for the largest exponent

anonymous · Answer

in your polynomial

anonymous · Answer

what does the $$4\sqrt{x}$$ stand for

anonymous · Answer

Is it a polynomial at all??? the variable has a fraction power too

anonymous · Answer

your polynomial is x^3-5x^1+4x^(1/2)

anonymous · Answer

yes it is a polynomial, im getting this out of my textbook.

anonymous · Answer

what does the $$4\sqrt{x}$$ stand for though

anonymous · Answer

check again as a polynomial never has fraction or negative power for the variable and in yr question x has a root ie 1/2 power

anonymous · Answer

So your exponents are {3,1,1/2}. Largest of which are 3; that your degree

anonymous · Answer

oh ok...thanks

anonymous · Answer

@imran
How can this b a polynom when variable has fraction power??

anonymous · Answer

I have it written in my book lol

anonymous · Answer

sanasaj if u look up the definition of polynomial then u will find that either this question is wrong or u hv typed the root wrong

anonymous · Answer

no it says :   $$x^3-5x+4\sqrt{x}$$

anonymous · Answer

It is not a polynomial in that sense but I think they are just practicing to find degree

anonymous · Answer

Then pls check with yr teacher as this is not a polynomial but as imran says if it is just for practice then degree is 3

myininaya · Answer

by the way its not a polynomial

anonymous · Answer

ok, thanks

anonymous · Answer

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