Question

If one zero of the polynomial x2 +a is -3 then find its other zero.

Answer 1

Answer:

Given x^2 + a has one of the zero as(-3)

=> (-3)^2. + a = 0

=> 9 + a= 0

=> a= -9

So the polynomial is x^2 - 9= (x-3)( x +3)

=> 3,-3 are the zeros

So the other zero of thebpolynomial is 3