Write the zeros of the polynomial x2 ‒ x ‒ 6.

We have,

f (x) = x2 – x – 6


= x2 – 3x + 2x – 6


= x (x – 3) + 2 (x – 3)


= (x – 3) (x + 2)


f (x) = 0


(x – 3) (x – 2) = 0


(x – 3) = 0 or (x – 2) = 0


x = 3 or x = 2


The zeros of the given polynomial are 3 and – 2


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