MCQ
Which of the following expression is a polynomial.
- A$\sqrt{\text{t}}+5\text{t}-1$
- B$\sqrt{\text{x}}+2$
- ✓$\text{x}^3-1$
- D$\text{x}^2-\frac{1}{\text{x}^2}$
✓
Answer
Correct option: C.
$\text{x}^3-1$
In a polynomial, the power of the variable of each term should be a whole number.
Here, the power of variable $x$ is $3,$ which is a whole number.
Therefore, it is a polynomial.
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