Check whether -3 and 3 are the zeroes of the polynomial x2 – 9. – InterviewSolution

InterviewSolution

1.

Check whether -3 and 3 are the zeroes of the polynomial x2 – 9.

Answer»

Given polynomial p(x) = x² – 9

Zero of the polynomial p(x) = 0

x² – 9 = 0

⇒ x² = 9

⇒ x = √9 = ± 3

∴ x = + 3, – 3

∴ Zeroes of the polynomial p(x) are – 3 and 3.

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