Question

3. Verify whether 2 and 5 are zeros of the
polynomial x2 - 2x - 15 or not
by long division.​

Answer 1

Answer:

x^2 - 2x - 15

Put x = 2

2^2 - 2(2) - 15

4 - 4 - 15

- 15

On putting x = 2, the result is not 0. Hence, 2 is not the zero of the given polynomial.

Put x = 5

5^2 - 2(5) - 15

25 - 10 - 15

25 - 25

0

On putting x = 5, the result is 0. Hence, 5 is the zero of the given polynomial.

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Answer 2

Answer:

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