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Question

Which of the following is a zero of the
polynomial x2−4?

A
2
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B
1
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C
4
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D
0
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Solution

The correct option is A 2
The zero of a polynomial is the value at which the vaue of the polynomial turns out to be zero.

At x=0,x24=024=4
At x=1,x24=124=3
At x=2,x24=224=0
At x=4,x24=424=12

Hence,
x=2 is a zero of the given polynomial.

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