Question

1. For which of the following polynomical zero will be -3?
(a) x-3
(b)x2_9
(c) x2-3x
(d) x2+3​

Answer 1

Answer:

a) x-3 is correct answer.....

Answer 2

Answer:

x2-9

Step-by-step explanation:

from formula a^2-b^2=(a-b)(a+b) we write these x2-9 in the form of that formula

(x+3)(x-3)=0

then the solutions are x=-3, x=3