SOLUTION: Determine the expression x^3-2x^2-3x-4 if it is polynomial or not

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Question 1090143: Determine the expression x^3-2x^2-3x-4 if it is polynomial or not
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

A polynomial is a combination of terms separated using + or - signs.
Polynomials cannot+contain+any+of the following:
1. Variables raised to a negative or fractional exponent. (2x%5E-2,x%5E%281%2F2%29).
2. Variables in the denominator. (1%2Fx,1%2Fx%5E2).
3. Variables under a radical. (sqrt%28x%29,3sqrt%28x%29).
4. Special features. (trig functions, absolute values, logarithms, …).

so, x%5E3+-+2+x%5E2+-+3x+-+4 is a polynomial