Question

check Weather -3 and 3 are zeros of the polynomial x²-9​

Answer 1

Step-by-step explanation:

let the given polynomial be =x^2-9

replacing -3 in place of x

p (x) = x^2-9 p (x )=x^2-9

p (x) =(-3)^2-9 p (x)=3^2-9

=9-9 =9-9

=0 =0

this way you can do

Answer 2

Step-by-step explanation:

Yes -3 and 3 are zeros of polynomial x^2-9

Equate the quadratic equation x^2-9 with 0

x^2-9=0

put -3 and 3 one by one and check whether it is its zero or not

(-3)^2-9=0

9-9=0

0=0

thus -3 is zero of x^2-9

(3)^2-9=0

9-9=0

0=0

and also the 3 is zero of x^2-9

Henceforth -3 and 3 are zeros of x^2-9