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Question
Verify whether the following zeroes of the polynomial, indicated against them.
p(x) = x2 – 1, x = 1, –1
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Solution
If x = 1 and x = −1 are zeroes of polynomial p(x) = x2 − 1, then p(1) and p(−1) should be 0.
Here, p(1) = (1)2 − 1 = 0, and
p(−1) = (−1)2 − 1 = 0
Hence, x = 1 and −1 are zeroes of the given polynomial.
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