Page 2 - Lesson Note-Zeroes of a Polynomial Ch-2

⇒ a x +b =0

⇒a x = −b

⇒ x = −

NOTE:

1. The number of zero of a linear polynomial is 1 because its degree is 1.

2. The number of zeroes of a quadratic polynomial is 2 because its degree is 2.
3. The number of zeroes of a cubic polynomial is 3 because its degree is 3.

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4. The number of zeroes of a n degree polynomial is ‘n’ because its degree is
‘n’.

NOTES:

1. The zero of a non -zero constant polynomial does not exist.

Example: Zero of -5 is ________________.

2. Zero of a zero polynomial are each and every real number.
3. Every real number is a zero of the zero polynomial.

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