Which of the following expressions are polynomials in one variable and

1.	Which of the following expressions are polynomials in one variable and which are not ? State reasons for your answer: (i) 3x2−4x+15 (ii) y2+2√3 (iii) 3√x+√2x (iv) x−4x (v) x12+y3+t50
Answer» Which of the following expressions are polynomials in one variable and which are not ? State reasons for your answer: (i) $3 x^{2} - 4 x + 15$ (ii) $y^{2} + 2 \sqrt{3}$ (iii) $3 \sqrt{x} + \sqrt{2} x$ (iv) $x - \frac{4}{x}$ (v) $x^{12} + y^{3} + t^{50}$

Which of the following expressions are polynomials in one variable and which are not ? State reasons for your answer: (i) 3x2−4x+15 (ii) y2+2√3 (iii) 3√x+√2x (iv) x−4x (v) x12+y3+t50

Answer»

Which of the following expressions are polynomials in one variable and which are not ? State reasons for your answer:

(i) $3 x^{2} - 4 x + 15$

(ii) $y^{2} + 2 \sqrt{3}$

(iii) $3 \sqrt{x} + \sqrt{2} x$

(iv) $x - \frac{4}{x}$

(v) $x^{12} + y^{3} + t^{50}$