Question

11]If one zero of the quadratic polynomial x2 – 5x – 6 is 6 then find the other zero.

Answer 1

Explanation:

It is given that 6 is the one of the roots of the polynomial. This means that since 6 is also the root of x -6, x- 6 is a factor of given polynomial.

Hence,

$x^2 - 5x - 6$

$= x(x-6)+1(x-6)$

$=(x+1)(x-6)$

Hence, -1 is the other root.

Answer: -1