Write the degree of each of the following polynomials:
(i) $5 x^{3} + 4 x^{2} + 7 x$
(ii) $4 - y^{2}$
(iii) $5 t - \sqrt{7}$
(iv) $3$

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Solution

(i) The power of term is $5 x^{3}$ and exponent is $3$ . So degree is $3$ .

(ii) The power of term is $y^{2}$ and exponent is $2$ . So degree is $2$ .

(iii) The power of term is $5 t$ and exponent is $1$ . So degree is $1$ .

(iv) The only term here is $3$ which can be written as $3 x^{0}$ and so exponent is $0$ or degree is $0$ .

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