CBSE Class 10: Videos

If a and b are the zeroes of a polynomial of degree 2, then the factors of f(x) are (x - a)(x - b). 

Zeroes of a polynomial x² - 1 are 1 and −1. Hence, to find the other zeroes, we will factorise x² - 4 = (x + 2)(x - 2).

Thus, the other zeroes are 2 and −2. 

aⁿ + bⁿ - cⁿcannot have any zeroes if n > 2.