

InterviewSolution
Saved Bookmarks
1. |
Which of the following expressions is a polynomial ?A) 3x-2 + 7x + 1B) 7x2 + 2/x – 8C) x2 – x – 1D) x +x/2 + 1/x |
Answer» Correct option is (C) x2 – x – 1 \(\because\) x - 2, \(\frac2x\) & \(\frac1x\) are rational expression (fractions) and polynomial are free from fractions. \(\therefore\) These are not an example of polynomials. Also, \(x^2-x-1\) is a polynomial because variables has natural powers. C) x2 – x – 1 |
|