Question

Write the degree of each of the following polynomials.
(i) 5x3+4x2 + 7x
(ii) 4 – y2
(iii) 5t – √7
(iv) 3

Need Explanation of the answer!​

Answer 1

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(i) The given polynomial is 5x³ + 4x² + 7x.

The highest power of the variable x is 3.

So, the degree of the polynomial is 3.

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(ii) The given polynomial is 4- y². The highest

power of the variable y is 2.

So, the degree of the polynomial is 2.

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(iii) The given polynomial is 5t – √7 . The highest power of variable t is 1. So, the degree of the polynomial is 1.

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(iv) Since, 3 = 3x° [∵ x°=1]

So, the degree of the polynomial is 0.

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Answer 2

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