Question

Which number is a zero of the function `f(x)=x^2-x-6`?

Answer 1

Zeros of the function are `-2` and `3`.

Explanation:

To find zero of the function `f(x)=x^2−x−6`, solve `x^2−x−6=0`.

For this, `x^2−x−6=0` can be written as `x^2−3x+2x−6=0`

or `x(x−3)+2(x−3)=0` or `(x+2)(x-3)=0`

or `x= -2 or 3`

Hence, zeros of the function are `-2` and `3`.