Question

{x:x is an integer , x^2-9=0} (list it)​

Answer 1

Answer:

The roaster form is {-3,3}.

Step-by-step explanation:

To find : Write the following in roster form { x:x is and integer x²-9=0} ?

Solution :

Roster form of a set is a list of elements that are in the set.

The set we have given is{-3,3}

$S = {x: x \: is \: and \: integer \: {x}^{2} - 9 = 0 }$

Now to get elements we solve the equation,

$x - 9 = 0 \\ {x}^{2} = 9 \\ x = \sqrt{9}$

$x = 3$

The roaster form is{-3,3} .

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Answer 2

Answer:

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on upper answer

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