Question

Write the zeroes of polynomial x2-x-6

Answer 1

$x^2-x-6$

= $x^2-3x+2x-6$

= $x(x-3)+2(x-3)$

= $(x+2)(x-3)$

Either $x+2=0$ or $x-3=0$

So, either zeroes are -2 or 3

Answer 2

x² - x - 6

= x² - 3x +2x - 6

= x(x -3) +2(x -3)

=(x -3)(x +2)
Hence, (x -3) and (x +2) are the factors of x² -x - 6

Hence, 3 and -2 are the zeros of x² - x - 6