Question 1 Classify the following polynomials as polynomials in one variable, two variables etc. (i) x2+x+1 (ii) y3−5y (iii) xy+yz+zx (iv) x2–xy+y2+1

Question 1 Classify the following polynomials as polynomials in one va

1.	Question 1 Classify the following polynomials as polynomials in one variable, two variables etc. (i) x2+x+1 (ii) y3−5y (iii) xy+yz+zx (iv) x2–xy+y2+1
Answer» Question 1 Classify the following polynomials as polynomials in one variable, two variables etc. (i) $x^{2} + x + 1$ (ii) $y^{3} - 5 y$ (iii) $x y + y z + z x$ (iv) $x^{2} - x y + y^{2} + 1$