determine whether the expression is a polynomial. if it is, state how many terms and variables the polynomial contains. then state its degree.

Question

anonymous · Answer

$$-5x+\frac{ 1 }{3x }$$

anonymous · Answer

Not a polynomial. For any polynomial, the degree of the variable must be an integer value greater than or equal to 0.

anonymous · Answer

ok what about this one$$-3x ^{-4}y ^{4}$$

anonymous · Answer

Here we notice that:$$\bf -5x+\frac{1}{3x}=-5x+\frac{1}{3}x^{-1}$$Clearly, the second 'x' has a degree less than one.

anonymous · Answer

Like I said, the degree of the variables must be an integer value greater than or equal to 0. Is this true for the second one? (Hint: Look at the exponent of 'x')

anonymous · Answer

no it is less than 0

anonymous · Answer

so this one would not be a polynomial either

anonymous · Answer

exactly.

anonymous · Answer

ok thanks

anonymous · Answer

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