Question

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

Answer 1

hey mate here is ur answer

-3 is a zero

substitute in it=

(-3)²+a=0

9+a=0

a=-9

hence polynomial is x²-9

is x²-9x²-9=0

x²=9

x=3 or -3

hence other root is 3.

hope it helps.

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