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Degree of a Polynomial

The degree of...

Question

The degree of $5 x^{3} + 4 x^{2} + 7 x$ is

1

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2

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4

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3

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Solution

The correct option is D $3$
$5 x^{3} + 4 x^{2} + 7 x$
The degree is the value of the greatest exponent of any expression (except the constant ) in the polynomial.
Here, term with greatest exponent $= 5 x^{3}$
exponent of this term $= 3$
Thus, degree $= 3$

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