If the degree of the polynomial $x^{a}$ + $x^{2}$ + $1$ is 2, what can be said about $^{'} a^{'}$ ?

a must be 2

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a can take only three values

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a can be any integer

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a is a negative integer

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Solution

The correct option is B
a can take only three values

Since degree is the largest power in x (variable of the polynomial), a should be less than or equal to 2.

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