Question

check whether x=1,-2&3 are zeros of the polynomials (x-1) (x-2) (x-3) ​

Answer 1

Answer:

put x = 1

(1-1)(1-2)(1-3)

0 yes

put x = -2

(-2-1)(-2-2)(-2-3)

(-3)(-4)(-5)

= -60

no

put x = 3

(3-1)(3-2)(3-3)

0 yes