Question

list all the elements of the set {x:x is an integer and x is a solution of x2-1=0}​

Answer 1

algebra

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x² - 1 = 0

x² = 1

x = ±1

so x = -1 or x = 1

Answer 2

Answer:

1 & -1.

Step-by-step explanation:

First we will solve x^2 - 1 = 0

x^2 - 1^2 = 0

(x + 1) (x - 1) = 0

Now, taking the value of each factor as 0, we will get that the two solutions are 1 & -1.

1 & -1 are the elements.