If one zero of the polynomial xpower2 + a is -3 then find other zero?

1.	If one zero of the polynomial xpower2 + a is -3 then find other zero?
Answer» P(x)=x^2+aGiven that one zero or root is -3Then put -3 instead of x(-3)^2+a=09+a=0a=-9 x2 +a+3=0a=xx2+x+3=0 D = 1-4×1×1=3X = -1+√3/2 & -1-√3/2 Putting x= -3 we geta= -9After factoring it i.e.(x-3)(x+3)We get +3 is another zero

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