PLZ HELP
Determine whether each expression is a polynomial.

1. f(x)=3x+4/3x^3-7

2. g(x)=-5x^3+x-3/x

3. h(x)=x^3√5+x-3

4. k(x)=25x^2-x^3+x^5

Question

PLZ HELP
Determine whether each expression is a polynomial.

1. f(x)=3x+4/3x^3-7

2. g(x)=-5x^3+x-3/x

3. h(x)=x^3√5+x-3

4. k(x)=25x^2-x^3+x^5

mertsj · Answer

What is the definition of a polynomial?

anonymous · Answer

um An expression of more than two algebraic terms.... but idk if #2 is one

anonymous · Answer

can x be the denominator?

mertsj · Answer

A polynomial is an expression made with constants, variables and exponents which are combined using addition, subtraction and multiplication...but not division
The exponents can only be 0,1,2,3...
It cannot have a infinite number of terms.

mertsj · Answer

So is # 1 a polynomial?

anonymous · Answer

so one and two are not

mertsj · Answer

Right

anonymous · Answer

and three and four are because they are not dividing

mertsj · Answer

Because they are made with constants, variables and exponents combined with addition, subtraction and multiplication.  And there are no fractional or negative exponents.

anonymous · Answer

sweet thank you!!! everytime you help me I understand it.. so thank you!!!!

mertsj · Answer

yw