Question

if x=-3 is a zero of x^2+a, find a and other zero

Kindly answer​

Answer 1

Answer:

this means

(-3)²+a=0

9+a=0

a=-9

so

x²-9=0

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

Therefore X=3/-3

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

x = -3

x²+a = 0

9+a = 0

a= -9

x²-9 =0

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

(x-3) =0

x= 3