4. Write the degree of each of the following polynomials :

i)\(5x^3 + 4x^2 + 7x\)

ii)\(4 - y^2\)

iii)\(5t - \sqrt{7}\)

iv)\(3\)

i)\(5x^3 + 4x^2 + 7x\)

ii)\(4 - y^2\)

iii)\(5t - \sqrt{7}\)

iv)\(3\)

i)\(5x^3 + 4x^2 + 7x\) is a polynomial with highest power of variable 3.

Hence, the degree of given polynomial is 3.

ii)\(4 - y^2\) is a polynomial with highest power of variable 2.

Hence, the degree of given polynomial is 2.

iii)\(5t - \sqrt{7}\) is a polynomial with highest power of variable 1.

Hence, the degree of given polynomial is 1.

iv)\(3\) is a polynomial with highest power of variable 0.

Hence, the degree of given polynomial is 0.